If it takes4/7 of an hour to paint 2/7 of a room how long does it take to paint one

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

You need to solve a system of equations. you decide to use the elimination method. which of these is not allowed? 3x - 2y = 7 3x + 4y = 17 equation 1 equation 2

The area (a) of a circle with a radius of r is given by the formula and its diameter (d) is given by d=2r. arrange the equations in the correct sequence to rewrite the formula for diameter in terms of the area of the circle.