Answer:
Addition, 83.6
Step-by-step explanation:
x - 72.6 = 11, x = 83.6
The grandson must add 72.6 to both sides to solve for x.
Answer:
$600
Step-by-step explanation:
75*100/450
7500/450
600
<em>Thank me later :)</em>
(<em>Or just give brainliest)</em>