Answer:
The answer is D
Step-by-step explanation:

Use the slope intercept form; y=mx+b where m is the slope and b is the y-intercept
Distributive proeprty
wait
combein elike terms
4(1m+3+5m)=4(5m+1m+3)=4(6m+3)
if we distribute
reemmber that a(b+c)=ab+ac
4(6m+3)=4(6m)+4(3)=24m+12
A. 24m+12 and 12(2m+1)
B. distributive property
C. if m=1, we get 36=36
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Her speed was 62.5 miles per hour.