Question: 1. Find how much fencing is needed to enclose a rectangular garden 70 feet by 21 feet. 2. If the fencing in Exercise 20 costs

1. Find how much fencing is needed to enclose a rectangular garden 70 feet by 21 feet.
2. If the fencing in Exercise 20 costs $2 per foot, find the total cost of the fencing.
3. A regular pentagon has a side length of 14 meters.
a. How many sides does a pentagon have?
b. Find its perimeter.

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