Answer:
$140
Step-by-step explanation:
each pair of shoes costs $20 (80 dvided by 4). 20 times 7 is 140
Answer:
4pi
Step-by-step explanation:
Ⓗⓘ ⓣⓗⓔⓡⓔ
Well, if the diameter is 4 u, the radius is 2 u.
The formula for finding the circumference of a circle is 2*pi*r
In this case, we'd just plug in 2 for r.
2*pi*2
4pi
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The first one is the correct answer