Madeleine wants to paint her living room and dining room taupe. the total area to be painted is 825 ft2. each gallon covers 75 square feet. how many gallons does she need to buy?

For this case what you should do is find the number of gallons by the following mathematical equation

n = (area to be painted) / (area covered by a gallon)

Substituting

n = (825) / (75) = 11

answer

she need to buy 11 gallons to paint her living room and dining room taupe