help please i just need the answer and if you can explain it great but if you have the answer thats all i need and i need it now

Clarence wants to buy a new car. he finds an ad for a car that costs 27,200 dollars. suppose his local sales tax is 7%. -how much would he have to pay? -what is the cost of the car including tax? -if clarence has 29,864 saved, can he pay cash to buy the car?

If f(x) = -5x + 1 and g(x) = x3, what is (gºf)(0)? enter the correct answer

20 ! need ! which exponential function is represented by the table? f(x) = 0.2(0.5x)f(x) = 0.5(5x)f(x) = 0.5(0.2x)f(x) = 0.2(0.2x)