Answer:
-27 + 19 = -8
-78 - 36 = - 114
6 + 12 = 18
46 - 9 = 37
Answer:17.5
Step-by-step explanation:you take 140 divide it by 8
15 and 12
Step-by-step explanation:
Set the two sides as x and y
y=x-3
P = 2w+2l
2x+2(x-3) = 54
4x-6=54
4x=60
x=15
y=12
-20
