The decimal for 40/100 is equivalent to .04
Answer:

Step-by-step explanation:
step 1
<u>Find the volume of the tank</u>
we know that
The volume of a cylinder (water tank) is equal to

in this problem we have
-----> the radius is half the diameter
substitute

step 2
Find the cost

If something is 50%, it is half, so 53 + 53 = 106 .
50% of 106 is 53 .
Hope I helped you out.
Answer:
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