Answer:
The cross section would be a square.
Step-by-step explanation:
The 2 ends of the rectangular prism are squares while the other 4 sides are rectangles. A cross section would be perpendicular to the rectangles, making the cross section a square. The cross section would be parallel to the end squares.
Answer:

Step-by-step explanation:
Given :

Now,

Therefore, expression is equivalent to 
Answer: B. y = 2x-5 is your answer hope this helped
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Step-by-step explanation:
Answer:
28
Step-by-step explanation:
7+21=28
a-7=21