The table shows the annual increase in cost in t years for certain grocery items. based on the formula a=c(1+r)^t , which equation could you use to determine the cost in t years for a gallon of milk?
a) a=4.25t(1.1)
b) a=4.25(1.10)^t
c) a=4.25(0.10)^t
d) a=4.25(0.90)^t

ANSWER

B.

EXPLANATION

The formula for calculating the cost in t years is given by:

To determine the cost in t years for a gallon of milk, we substitute,

C=$4.25

and

r=10%=0.10

in to the above formula to obtain:

Simplify the parenthesis to get,

The correct choice is B.

answer: b

step-by-step explanation: