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Answer:
B. [tex]36\frac{3}{4}\ mph[/tex]
Step-by-step explanation:
The formula for average speed:
[tex]S_{average} = \frac{distance}{time}\\\\S = \frac{49\ miles}{1\frac{1}{3}\ hours}\\\\S = 36.75 = 36\frac{3}{4}\ mph[/tex]