A model organism is a species that researchers study to better understand certain biological processes. Mollusks and Arthropoda are commonly used as model organisms for studying mechanisms of learning and memory, while sponges and jellyfish are not. Why is that?

Robert is considering purchasing a manufactured home that costs $76,900. If he expects the home value to decrease 5% each year, which function will show the value of Robert's manufactured home in t years?

A.

V (t) = $80,745t

B.

V (t) = $76,900 (0.95) t

C.

V (t) = $76,900 (1.05) t

D.

V (t) = $76,900 (-0.95) t