Question

What is the value of the expression when a = 4, b = 3 ,and c = 10?

3a4b−c

1
4
6
12

Answer 1

Explanation:

Order of operations rules require multiplying before adding or subtracting. Thus, 3a4b, all multiplication, is done first:

3(4)4(3) = 144,

after which c (or 10) is subtracted from this result:

144 - 10 = 134

This is correct if one assumes, as has been assumed here, that 3a4b involves all multiplication.