Answer :
[tex]\begin{gathered} \text{The given expression is,} \\ 4m+10 \end{gathered}[/tex]
The m=3, put in the above expression.
[tex]\begin{gathered} =4m+10 \\ =4\times3+10 \\ =12+10 \\ =22 \end{gathered}[/tex]Thus, the answer is 22.
[tex]\begin{gathered} (2) \\ \text{The per day cahrge is \$}25\text{ and setup cost is \$6.75.} \\ The\text{ expression for d days,} \\ 25d+6.75 \end{gathered}[/tex]Now, cost for 7 days,
[tex]\begin{gathered} =25\times7+6.75 \\ =175+6.75 \\ =181.75 \end{gathered}[/tex]