Answer:
[tex]\text{Total cost=30x+35}[/tex]Step by step explanation:
The total cost of a purchase is represented by:
[tex]\text{ cost of the unit}\cdot\text{ number purchased=total cost}[/tex]Then, since Mr. Mishra bought:
x number of soccer balls and each soccer ball is $30.
5 baseballs and each baseball is $7
Then, the algebraic expression of the purchase is given by:
[tex]\begin{gathered} \text{Total cost=30x+7}\cdot5 \\ \text{Total cost=30x+35} \end{gathered}[/tex]