Well if you have 48 pics of flowers and 36 pictures of scenery and you want an equal amount of pictures of the scenery, you want to start out by just seeing what number divides evenly into both, in this case, it is four.
Find total area
area=14 ties 12=168 ft^2
9 hours
168/9=56/3=18.6666666 ft^2 per hour
round
18.7 ft^2 per hour
64 muffins and 57 cupcakes. Since no muffins were sold, the amount of muffins wouldn't change. Since 15 cupcakes were sold, you just subtract 15 from the total amount of cupcakes (3 * 24 = 72; 72 - 15 = 57).
The answer is D have a good day :)