CAN ANYONE HElP ME ON HOW TO SOLVE THESE QUESTIONS?

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

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)