Answer:
try the first, fourth, and last one
Step-by-step explanation: when you read the question it say select all that apply to form the equation so all you have to do is select the numbers and the variables that are in the equation above.
I hope this helps you
Area=pi.r^2
r^2=Area/pi
r= square root of Area/pi
No it is not enough because if each box contains 12 cups of ceral then there is 21 kids all together so u will not have enough then
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