Answer:
.009 miles/hour
Step-by-step explanation:
This is the method you should take with unit conversions in general, just set up fractions so the units cancel out, like the 7.5 feet cancels out with the feet in the 1/5280 so miles is left on top.
256
4×4=16
16×4=64
64×4=256
I wrote it roughly.
Hope it helps.
I am sorry.
C = 2πr = 2 * 3.14 * 20 = 125.6
it's 3.4%
You take the difference of 362 and 350 (which is 12) and divide it by the starting number (350) getting you 3.4