Find the mean of the following numbers 7 21 2 17 3 13 7 4 9 7 9

Select the correct answer from each drop-down menu. the length of a rectangle is 5 inches more than its width. the area of the rectangle is 50 square inches. the quadratic equation that represents this situation is the length of the rectangle is inches.

Ihonestly have no clue if it's each or none.

What are the excluded values? m+5/mn+3m