A 4lb. bag of salt water taffy from the beach costs $15.12. What is the unit rate? A.$15.12/lb
B.$3.78/lb
C.$3.79/lb
D.$3.77/lb​

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

what are ur choices?