Can someone please explain those 3 box questions?

Which expression is equivalent to the expression below? (6c^2 + 3c) / (-4c + 2) / (2c + 1) / (4c - 1)a. 3c(2c-1) / (2c + 1)b. -3c(2c-1)^2 / (2c + 1)^2c. 3cd. -3c(just took the test its d. -3c)

Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.

Marking brainliest rewrite the equation x = 65 - 60p by factoring the side that contains the variable p.