For your backyard you buy 3 rose bushes , 6 geraniums , and 1 hosta. for your front yard you buy 2 rose bushes and 5 hostas. define and use variables to represent the total cost.

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