Identify each function as linear or non-linearneed with both

What is the exact volume of the cylinder (radius 13 in., height 30 in.)

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)

Ameteorologist is studying the monthly rainfall in a section of the brazilian rainforest. she recorded the monthly rainfall, in inches, for last year. they were: 10.4, 10.3, 11.7, 11.1, 8.0, 4.4, 2.6, 1.8, 2.5, 4.4, 7.3, 9.5 fill in the missing values in the formula. what is the variance?