Answer:
the answer is 9.5 (B)
Step-by-step explanation:
Answer:
280 square inch
Step-by-step explanation:
2(4*8)+2(8*9)+2(9*4)
= 64+144+72
=280
Answer:
56 dollars are earned for recycling 28 pounds of copper.
Step-by-step explanation:
Quantity of copper recycled =
pounds
Amount earned in dollars for recycling
pounds of copper = 
Also,
Quantity of copper recycled =
pounds
Therefore,
Amount earned in dollars for recycling
pounds of copper =
dollars
So,
56 dollars are earned for recycling 28 pounds of copper.
Answer:
(-2,-5)
Step-by-step explanation:
y = 2x-1
3x-y = -1
We can use substitution
3x - (2x-1) = -1
Distribute the minus sign
3x -2x+1 = -1
x +1 =-1
Subtract 1 from each side
x+1-1 = -1-1
x=-2
Now we need to find y
y = 2x-1
y = 2(-2) -1
y = -4-1
y = -5
(-2,-5)