Answer:
The total costs for this month is $1463.75
Step-by-step explanation:
Consider the provided cost function.
It is given that the cost function for Marisa's new clothing store where she sells T-shirts is C = $9.75n + 1025.
Here, n represents the number of T-shirts Marisa sells.
We need to find the Marisa's costs if she sells 45 T-shirts this month.
To find this substitute the value of n=45 in the above cost function.
![C = 9.75(45) + 1025](https://img.qammunity.org/2019/formulas/history/high-school/xgldq21fgin12wvdw3bh1x3q7f97klir5o.png)
![C = 438.75+ 1025](https://img.qammunity.org/2019/formulas/history/high-school/39tgy15jhwlpxynme2a2r15x05byltilib.png)
![C = 1463.75](https://img.qammunity.org/2019/formulas/history/high-school/6whwb7q34hqjbvfy67z2li9u32i0kdt0d8.png)
Hence, the total costs for this month is $1463.75