Answer:
Step-by-step 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.
