Could someone me with this math i don't get what i'm supposed to do!

Which graph represents y=^3 sqrt x+8-3 ?

Find the solution set of this inequality. select the correct graph. |8x+16|> 16

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.