Answer:
The cost of parking in the garage for 75 minutes is 4.875.
Explanation:
The costs of parking h hours is given by the following function:
![f(h) = 4.5 + 1.5(h-1)](https://img.qammunity.org/2021/formulas/mathematics/high-school/w4ps5beu1rywf77vknpo6ace4o1b6grz73.png)
Cost of parking 75 minutes.
1 hour is 60 minutes. How many hours are 75 minutes?
1h - 60 min
xh - 75 min
![60x = 75](https://img.qammunity.org/2021/formulas/mathematics/high-school/p4lsxq4favqvipf0fomr3s8cfcfc421ak8.png)
![x = (75)/(60)](https://img.qammunity.org/2021/formulas/mathematics/high-school/tmhpz2xu1v9sigjykaf5p5s86cl1t16829.png)
![x = 1.25](https://img.qammunity.org/2021/formulas/mathematics/high-school/blcbaiflbg6bcmk6h5zbodnbsxdnsso5ti.png)
75 minutes is 1.25 hours. So we have to find f(1.25).
![f(1.25) = 4.5 + 1.5*(1.25-1) = 4.875](https://img.qammunity.org/2021/formulas/mathematics/high-school/tqpmxzau58kidjfvf3jhxrrm1z1bcuezyk.png)
The cost of parking in the garage for 75 minutes is 4.875.