Solve each problem.
determine which choice (or choices)
best represent the equation:
10 is 5 times as many as 2
(a) 5 + 5 = 10
b. 5 * 5 = 10
c. 5 x 2 = 10
d. 10 = 2 x 5

10 ! in a race, nick is 50 feet in front of jay after ten seconds. how fast can nick run, if jay can run 20 feet per second?

For what values of x is x2 + 2x = 24 true?

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.