Question

Evaluate each expression if a = 1/2 and b=5

8a + 2b
b - 2a

Answer 1

8a + 2b is 14 and b - 2a is 4 1/2

Explanation:

divide 8 by 2 to get 4 and multiply 2 times 5 to get 10, then add 10 + 4

If b=5 and a is 1/2 then 5 - 1/2 = 4 1/2