Find the total amount given the original price and tax rate. Round to the nearest cent if necessary. $31.69, 6%

At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. the diameter of the base of the cone is approximately three times the altitude. at what rate is the height of the pile changing when the pile is 12 feet high? (hint: the formula for the volume of a cone is v = 1 3 πr2h.)

Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length