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What is the complete factorization of x^2 + 2x 63?A. (x + 21)(x 3)B. (x 9)(x + 7)C. (x + 9)(x 7)D. (x 21)(x + 3) Two snakes race the speed of the first is 24 1/2 inches per minute and the speed of the other is 26 inches per minute how far apart with they be in 3 min? 10 min? Which of the social sciences (for example, psychology, political science, economics, anthropology, gender studies) strikes you as closest to sociology? Which is most distinct? Why? Make a sentence using the words foreigners, startled, and stereotypes A volcanic area of rising mantle material called a(n)..... is located below the island of Hawaii. Can somebody plz help answer these word prob questions plz thanks! (Grade7math( btw :)WILL MARK BRAINLIEST WHOEVER ANSWER FIRST :DDD it's science, well i need help... ABCDEFGH What was the purpose of the National Advisory Committee for Aeronautics(NACA) during World War? Which scenario MOST LIKELY encouraged America's Founding Fathers to design a government that shares power? can someone please help me, ill give brainliest plus points! Tell me a short story that I can write. The ratio of girls to boys is 8 girls to 4 boys.If there are 4 girls, how many boys are there? a pizza costs $11 and $1.50 per topping write a equation for cost in dollars and the nunber of toppings 5Describe and explain one way the River Tees is being managed by Humans. I NEED HELP!!!!Physical therapists measure strength on a dynamometer, which uses a unit called a foot-pound. Suppose you increase the strength in your elbow joint from 90 foot-pounds to 125 foot-pounds. Find the percent of increase to the nearest percent.A.39%B.138.9%C.28% I need help please in ASAP Who did W.E.B Du Bois most have issues with? A. Alice Paul B. Ida B. Wells C. Susan B. Anthony D. Booker T. Washington how are officials elected or appointed?hpw do people exercise power? (9x - 18)find the value of x What clue does the author include to let the reader know what vittles means?