Do any one know what is number language

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.

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4