What is the equation that could be used to solve for x?

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

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28

Aboard 60 in. long is cut two parts so that the longer piece is 5 times the shorter. what are the length of the two pieces?