Answer:
<u>cost to mail package</u>
Step-by-step explanation:
the weight is not dependant on the cost to mail the package
the cost depends on how much the package weighs.
Answer:
y = -2x+7
Step-by-step explanation:
2x+y=7
Subtract 2x from each side
2x+y -2x=-2x+7
y = -2x+7
Answer:
420
Step-by-step explanation:
