Question

evaluate when 8.1p + 7.5r when p=6 and r=7

Answer 1

You have the following expression:

8.1p + 7.5r

if p=6 and r=7, you obtain for the previous expression:

8.1(6) + 7.5(7) = 48.6 + 52.5 = 101.1

Hence, the result is 101.1