How much potential energy would a 41 kg diver have standing on a 10 m diving platform

Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?

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

Ineed to know the answer to this algebra question.