Arectangular room is 10 feet longer than it is wide. one-foot-by-one-foot tiles cover the entire floor. let w represent the width (in feet) of the room. write an expression in simplest form that represents the number of tiles along the outside of the room?

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days