Answer:
What’s the question—— I could help and try to answer it!
Step-by-step explanation:
Step-by-step explanation:


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Plugging in the value "a = 7" and "b = -2" in the above expression, we have
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1: Diameter - 16 in.
Radius - 8 in.
2: 37.68 in.
3: 20 yd.
4: 0.24 mi.
5: Both students are wrong because if you use the pi instead of its abbreviated form, then the answer is about 50.27 ft.
6: The circumference of a wheel is its diameter*pi.