Explanation
We are given the following:
[tex]\begin{gathered} Standard\text{ }Charge(S)=0.50M+14.95 \\ Insurance\text{ }Charge(I)=0.25M+3.70 \end{gathered}[/tex]
We are required to determine the total charge (C) for a rental that includes insurance.
The total charge is calculated as:
[tex]\begin{gathered} C=S+I \\ C=(0.50M+14.95)+(0.25M+3.70) \\ C=0.50M+14.95+0.25M+3.70 \\ C=0.50M+0.25M+14.95+3.70 \\ C=0.75M+18.65 \\ C=5(0.15M+3.73) \end{gathered}[/tex]
Hence, the answer is:
[tex]\begin{gathered} C=0.75M+18.65 \\ C=5(0.15M+3.73) \end{gathered}[/tex]