Final answer:
The answer is 181.1.
Step-by-step explanation:
To evaluate 12.5p + 11.7r when p = 7 and r = 8, we substitute the values of p and r into the expression. We get:
12.5(7) + 11.7(8)
Simplifying the expression, we have:
87.5 + 93.6
Adding the numbers together, we get:
181.1