Question

8. Find ab - c if a = 5, b = -12, and c = 60.

9. Find c-b+ 2(a - 4) if a = 3, b = -7, and c = -10.
10. Find the mean of -4, 11, -5, 7, -12, 14, -7,-11, -2.

Answer 1

8.) -120

9.) -5

10.) -1

Explanation:

8.) ab - c

5(-12) - 60

-60 - 60 = -120

9.) -10 - (-7) + 2 (3 - 4)

-3 + 2(-1)

-3 + (-2) = -5

10.) Add all the numbers up then divide by how many numbers there are.