Kierra want to buy herself a new purse which is $500 but they have it on sale for 18% what is the sales tax and how much will she have to pay for

im pretty sure it is 590 cuz 18% of 500 is 90 and 90+500 is 590

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2