An alligator is 8 inches long at birth and grows 10 inches per year. Which equation represents the length y (in feet) of an alligator that is x years old?
A. y = 18x
B. y = 8x + 10
C. y = 10x + 8
D. y = -10x + 8

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4

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