1st image:
20 (20 + x) = 40^2
400 + 20x = 1600
20x = 1200
x = 60
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2nd image:
5 * x = 10 * 6
5x = 60
x = 12
Im not sure if im correct but I think the answer is 82 hours.
Answer:
C
Step-by-step explanation: