What is a compound word with 'stairs' at the end?

How many minutes is in a month? How many hours minutes in 213 minutes? Which multiplication property tells you that the following is true 4x5 5x4 explain how you know this? How many milliliters of 0.200 M FeCl3 are needed to react with an excess of Na2S to produce 2.75 g of Fe2S3 if the percent yield for the reaction is 65.0 percent? 67.5 degrees for mariners? What is 4-5th of 35? What is 0.180 as a fraction? What is the frequency of a wave with a wavelength of 25 meter and a speed of 37.5 meters per second? How many square feet in 69 of an acre? Why is a coltsfoot called a coltsfoot? Is 0.03 rational? What is the system of equations and enter the solution as an ordered pair 9x - 2y equals 73 5x - 9y equals 9? What is the probability for drawing a red or black card? What is 2.75 plus 3.5? What are the 2 solutions for x plus 8 equals 1? What is an improper fraction for 4 and 1 third? Are the rungs on a stepladder parallel intersecting or skew? How much dirt is there in a rectangular hole that measures two feet by three feet by four feet? How to round off of the decimal place value? AC Moore?