Calculate the number and height of risers for a set of stairs if the distance from finished floor to finished floor is 26".

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.

How does percent markup and percent discount relate to percent of change?