What is the expression in factored form . 9x^2 -4 show detailed work so i can understand how to do this on my own later.

Explain how you can use the associative property to evaluate (7x50)x4.

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

In one month jillian made 36 local phone calls and 20 long-distance calls what was her ratio of local calls to long-distance calls for that month?