Answer:
21.
Explanation:
We have been given that Reaner Recycling shreds 7/8 ton of aluminum each day.The machines can shred 1/24 ton aluminum per cycle.
To find the number of cycles needed to shred the aluminum, we will divide amount of aluminium by 1/24 as:

Convert into multiplication problem by flipping the 2nd fraction:




Therefore, 21 cycles will be needed to shred the aluminum.