Answer:
-45
Step-by-step explanation:
Start by subtracting 100-55 (The reason you subtract is because a positive plus a negative can also be subtracting)
Next Add that answer (45) to -90
Finally you get -45
Thank you
variables:
S=small boxes,6 cubic feet
L=large boxes, 17 cubic feet
equation:
2S+S=280
i-4 1/8
ii- 2 3/100
iii- 10 123/1000
iv- 292/625
...
