5^3(5^x) the rule is a^b(a^c)=a^(b+c)
5^(3+x)
I wish i remembered that but it has been a while
The slope is the relationship between the cost of the gym and how long you are there for.
the y-intercept is how much it costs to go to the gym for no hours ie the start-up cost.
If you are trying to find the area the answer would be 48