I really need help (links will be reported) please give the right answer.

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.

What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100

Find the nonpermissible replacement for binthis expression. b2/5b +5