Which equation shows another way to represent the area of a circle

What is the equation and solution for the sentence? the sum of a number and thirty-one is one hundred thirteen. write the equation as n-31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and add 31 to both sides. the answer is 144. write the equation as n-31=113 and add 31 to both sides. the answer is 144.

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5