What was important about Donald Johanson’s discovery of Lucy in 1974?
a. It proved that hominids used tools.
b. It proved that hominids lived in East Africa 5,000 years ago.
c. It pointed to a hominid’s ability to walk upright.
d. It was the first discovery of ancient bones

The distribution of student scores on the quantitative section of the SATs have an approximately normal distribution with a mean score of 501 points, and a standard deviation of 85 points. If you randomly select one student who has taken the SAT, what is the probability that the student will have scored greater than 600 points on the quantitative section of the SATs Look at this net for a rectangular prism.What is the surface area of the solid created by the net? Show your work.the second part of the question EXPLAIN YOUR THINKING PLZ HELPThe length of the rectangular face is 15 cm, and there are 4 rectangular faces in the rectangular prism. If the length of the rectangular faces in the prism was tripled to 45 cm, what would happen to the size of the 2 rectangular bases of the prism? Explain your thinking. Mai is playing a game of chance in which she rolls a number cube with sides numbered from 1 to 6. The number cube is fair, so a side is rolled at random. This game is this: Mai rolls the number cube once. She wins $1 if a 1 is rolled, $2 if a 2 is rolled, $3 if a 3 is rolled, and $4 if a 4 is rolled. She loses $0.50 if a 4, 5, or 6 is rolled.a) Find the expected value of playing the game.b) What can Elsa expect in the long run, after playing the game many times?1) Elsa can expect to gain money. She can expect to win___dollars per roll. 2) Elsa can expect to lose money She can expect to lose___dollars per roll.3) Elsa can expect to break even (neither gain nor lose money). Mars is on average 2.25 x 108 miles away from Earth. The moon is on average 2.388 x 105 miles away from Earth. Approximately how many timesfarther is Mars from Earth than the moon is ?A.0.94 times B.9.4 times C.94 times D.940 times the world had entered into the new era along with the commencement of renaissance period.Justify this with 6 points Please help due tomorrow Given that f(x) = 3x - 2, g(x) = x2 + 3x and h(x) = 4.2^x Taking her to the Flower show will be a great birthday surprise. the gerund is... *A. will beB. to the Flower ShowC. TakingD. be sushmila is buying Mehdi supplies chhering deposite rs. 40000 in a bank at the rate of 5% p.a. if he has to pay 5%of the total interest as tax for the bank how much will he get after 4 years Why did the robber take a bath seth put $500 in his savings account, which earns a earns a simple interest rate of 4% A. use the simple interest equation ( I=Prt ) to find out how much interest seth earns after 6 years.B. now find out how much interest seth wold earn if he were to earn 7% compound interest for 6 years Someone help me out :) a cylindrical pipe made of metal 3 m long is 3 cm if the internal radius of the pipe is 10 cm what is the volume of metal used in making the pipe What is the definition of the Turkish flag? What does it convey? SOMEONE PLEASE HELP! What is the opposite of dividing by 21? A. dividing by 21 B. multiplying by 21 C. subtracting 21 D. adding 21 Help plz math question. EXPLAIN HOW YOU GOT THE ANSWER. 30 PTS btw thx if u help Which technology gave sailors the ability to make longer ocean voyages and find new lands? A pharmaceutical company with headquarters in India sells fluconazole, the generic version of Pfizer's anti-fungal drug Diflucan internationally for significantly less money than many U.S. generic drug manufacturers. The generic drugs industry in this country needs to rethink its What is the prefix of equal?