A fitness club charges $25 per month as well as a one-time $80 fee of all new members. Which equation represents the cost in dollars, image, for a new member who prepays for image months? A.
c
=
105
m

answer: the common difference is -0.10

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.

correct answer:

b.(19,-2)