Answer:
Option A
Step-by-step explanation:
Both brackets must have minus since it has to be shorter and narrower.
So that leaves us with Options A and D
D is expanded wrong since -2x+-10x =-12x and not -8x.
So the answer is Option A
18 + 1/2 x (9 - 4) =
18 + 1/2 x 5
18 + 2.5
20.5
20.5 is your answer.
(-8.6)+7.2= -1.4
Think of it as 8.6-7.2 and carry down the negative sign.
She saved $54 spent $6 so she saved $48 more then she spent