divide total miles by time:
157.5 / 2.5 = 63 miles per hour
The mean of the problem is 37.3. All you need to do is add all the numbers together and then divide them by the amount of numbers. So I added them all and divided by 10.
PP = 2L + 2W. Here, PP = 2(7 inches) + 2(5 inches) = 24 inches.
to calculate pi you can use the Nilakantha Series.
