Can someone simplify these?
(3x^2)3x^2 and (3x^3)^2(x^2)
i'd really appreciate it.

Amap has a scale of 3.5 inches = 20 kilometers. if the distance between two cities on the map is 4.9 inches, what is the actual distance between the two cities?

In the next 10 month,colin wants to save $900 for his vacation.he plans to save $75 each of the first 8 months. how much must he save each of the last 2 months in order to meet his goal if he saves the same amount each month ?

Each unit cost 14p, how much would 942 units cost?