The hill means it was already 23 feet above ground and he went and back up so the answer is 23 positive
Step-by-step explanation:
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10% because walking is only 10 percent of the hrs
0.8 times 1200 is 960, which is the number of people when the theatre is 80% full.
Yes because 4x3^x =12^x since the coefficient is added to the answer because it is in the 3.