What are the coordinates of the midpoint of the line segment with endpoints j(−6, 3) and k(4, −2) ?

Astudent survey asked: "how tall are you (in inches)? " here's the data: 67, 72, 73, 60, 65, 86, 72, 69, 74 give the five number summary. a. median: 73, mean: 70.89, iqr: 5, min: 60, max: 74 b. 60, 66, 72, 73.5, 86 c. 60, 67, 72, 73, 74 d. 0, 60, 70, 89, 74, 100

Ineed to know the answer to this algebra question.

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m