Find the area of a circle with a circumference of \blueD{12.56}12.56start color #11accd, 12, point, 56, end color #11accd units.

12.55

Step-by-step explanation:

A = C²/4pi (3.14) = 12.56² ÷ 4 × pi (3.14...) ≈ 12.556363, in this case we only take 12.55

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

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step-by-step explanation:

mean or average is 40.6