Answer:
50.3
Step-by-step explanation:
A=πr2=π·42≈50.26548
36 mph
d = rt
d = (x)(3.6)
d = (x-4)(4)
3.6x = 4x - 16
-0.4x = -16
x = 40
Her speed was 40 on Thursday, so 36 on Friday
in the first q1 of the graph
9 out of 16
