Question

I need help with 3,4,5 Please!!

Answer 1

3. g(x) = x^2 - 5x + 3
    g(-3) = -3^2 - 5(-3) + 3
    g(-3) = 9 + 15 + 3
    g(-3) = 27 <==

4. 4(7b + 15f - 8f) =
    4(7b + 7f) =
     28b + 28f <===

5. C = 2.50r + 15
    for 5 rolls...r = 5
    C = 2.50(5) + 15
    C = 12.50 + 15
    C = 27.50...its A