It would take john 6 hours to paint a room by himself. It would take Tom 18 hours to paint the same room by himself. Of john and tom work together, each at his individual rate, how many hours will it take the to paint the room.

A grain silo has a diameter of 4.4 meters. The height of its cylindrical portion is 6.2 meters. What is the approximate total volume of the silo? Use 3.14 for π and round the answer to the nearest tenth of a cubic meter. 37.1 m3 71.9 m3 116.5 m3 130.

3 (2x+x) - 5x the equation

What does K=3mh+3; h simplify to

A video store charges $4 to rent the first movie and x for each additional movie. What expression would represent the cost for renting 5 movies?

Y=-.50x+12 in standard form

Write an expression to represent: The sum of one and the product of four and a number x.

The surface area of a square pyramid is 95 square inches. The side length of the base is 5 inches. What is the value of x?

Subtract 2w + 4 from 3w + 6. Enter your answer in the box.

A physician prescribes a drug based on a patient's mass. The dosage is given as 0.04 mg of the drug per kilogram of the patient's mass. Answer the following and round to one decimal place, if needed.

What is the factir and quotient of 24:4=6 and 4*6=24