SA = 2nr 2 + 2nrh (Use 3.14 for T.) find the surface area of a cylinder with a height of 9 inches and base radius of 4 inches.
square inches

DO NOT round your answer​

Suppose that prices of a gallon of milk at various stores in one town have a mean of $3.71 with a standard deviation of $0.10. using chebyshev's theorem, what is the minimum percentage of stores that sell a gallon of milk for between $3.41 and $4.01? round your answer to one decimal place.