Answer:

Step-by-step explanation:
Given

Required
Find f(0)
From the piecewise function, we have the following as values of f(x):

If 

If 
f(0) implies that
and 
So, we make use of the first function, which is:

Substitute 0 for x in 



So, the expression becomes


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<em>Hence, the value of f(0) is 14</em>
20.25 because 1 mile takes 0.75 minutes
Answer:
radius = 35.03 m
Step-by-step explanation:
5280/24 = circumference = 220 m
220 /Pi = diameter = 70.06 m
70.06/2 = radius = 35.03 m