2n+8 maybe try that i dont get the question..kinda confusing
15/100=0.15
60*0.15=9
60-9=$52 after discount
The answer is

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Remember to combine like terms.
Hop this helps. c:</span></span>
The answer would be 132 because the formula for find circumference while using radius is 2(3.14)r .
C= 2(3.13)21
C= 6.28 • 21 = 131.88
131.88 rounded is 132