Answer:
[tex]p^{2}[/tex] + 18
Step-by-step explanation:
Substitute 5 for the y in the problem. 5y means 5 times y.
[tex]p^{2}[/tex] + 5*5 - 7
[tex]p^{2}[/tex] + 25 - 7 (combine 25-7)