Please answer asap i need a good grade im failing math class and i need help

What kinds of numbers make up the set of numbers called the real numbers? give examples when you explain a number type. there are a limited set of types of numbers, but an unlimited number of examples of these numbers.

If m 17 27 90 63 ** picture is attached

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