What is the area of the dining table in square units if the width is a units and the length is (x+y) units? pa help po pls

Hiroki wrote a number that is the opposite of -3. what number did hiroki write? a. ⅓ b. 3 c. 0 d. -3

Given the box plot, will the mean or the median provide a better description of the center? box plot with min at 10.5, q1 at 11.5, median at 12.5, q3 at 13.5, max at 15

If you answer right ill give brainliest, : )