Real numbers that you can't represent as a quotient of two integers are ? numbers

One integer is 8 times another. if the product is 72, then find the integers

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

A.s.a.! similarity in right triangles, refer to the figure to complete this proportionc/a = a/? a.) cb.) hc.) rd.) s