2a+5b+7,8a-7b+4,-5a-8b-4​

Suppose someone gives you 6 to 1 odds that you cannot roll two even numbers with the roll of two fair dice. This means you win 6 dollars if you succeed and lose 1 dollar if you fail. What is the expected value of this game to you. What can you expect if you play 200 times I need help I dont get how to solve it plsss help me Describe the event called the "Little Rock Nine." ABCDEFGH The value of x is Kris has 3 daughters who all live in different cities across Georgia. She wants to live somewhere that is an equal distance from each of her daughters. She mapped out the 3 cities and drew a triangle connecting them. How can she find a point on the map that is an equal distance from all 3 cities?construct the incenterconstruct the orthocenterestimate the best placeconstruct the circumcenter Summarize the Courts decision in Marbury v. Madison. As a result of this case, what important legal principle was established?/ Who does the mesosphere share a boundary with? How does low turgor pressure affect a plant? PLEASE HELPPPPPPPP....?.......If a+b=15 and ab=54 then find 1) [tex] {a}^{2} + {b}^{2} [/tex] 2)[tex](a - b )^{2} [/tex] 3)[tex]a ^{2} - {b}^{2} [/tex] The Etruscans originated from the ancient land of A. Etruria B. Assyria C. Estonia D. Mesopotamia Could someone please tell me the answer Insurance company A and B both are life insurance companies that pay claims to a designated beneficiary upon death of an insured life. Company A insures 10,000 lives and expects to receive 525 claims this year. Company B insures 8,700 lives and expects to receive 410 claims this year. The actual number of claims for company A will range 500 < 550. The actual number of claims for company B will range from 369 < 451. Who faces the most objective risk Find the slope of the line for the angle.330 degrees I WILL MARK BRAINLIEST PLEASE HELP ASAP!!!!! Sketch a new graph of this relationship. The equation is y=7/4x Which statement is correct?O A.The opposite of the opposite of 6 is 6.OB.The opposite of the opposite of 1 is 1.O C.The opposite of the opposite of 3 is 0.O D.The opposite of the opposite of 5 is. The technique used to create form that introduces a new section is:A. contrast.B. repetitionC. variation.D. development Plz help me! Im not sure how to do these! A motorcar is running at the rate of 66 km per hour. Eachof its wheels makes 500 revolutions per minute. Find theradius of the wheel..(Ans: 35 cm) WILL MARK BRAINLIESTHypothesis: If snails are present, then they will release carbon dioxide which the Elodea will take in.What is the control to test this hypothesis? A: Elodea plants in the dark B: Elodea plants in the light C: Elodea plants with snails D: Elodea plants without snails E: bromthymol blue without plants or snailsONLY ONE ANSWER CAN BE CHOSE Use basic facts and place value to find the quotient.450 9 =Your answer