Ive been trying so hard to figure this out someone please help Find the precent of markup if the cost to the store is $250 and the store is selling the TV for $312.50

Write a numerical expression that satisfies all of the following conditions. 1.)the only number used in the expression is 5 2.)at least one exponent other than 1 is used 3.)when the expression is evaluated, the answer is greater than 40 and less than 50

The square root of 9x plus 7 plus the square rot of 2x equall to 7

The first floor of marcus’ house is 1,440 square feet. he will cover 1,033 square feet with wood and the rest with tile. a box of tiles will cover 11 square feet. how many boxes of tile does marcus need to buy to cover the floor?