It is given that the gradient of a straight line which passes through M(h,3) and N(-2,-9) is 2, calculate the value of h.​

Ineed i do not understand i'm only 8

Plzzz i beg u so much asaaaap ! what is the slope of this line? enter your answer in the box.

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