For a width of 25, the length will also be 25, so the area is 25² = ...
625.
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The rule is
area = width×(50 -width)
First you bring the x to one side so u subtract 4x from 7x and you get the new equation as -9=3x+12 then you just solve and you get x is equal to -7
Answer:
b. these codes are equal volume
I believe the answer is 0.5
