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Eric is starting his own business by baking muffins and cupcakes at a local farmers' market. To make it worth his time, he needs to sell at least 10 cupcakes, but can bake no more than 50. He must also sell at least 20 muffins but can bake no more than 70. Eric cannot bring more than 90 muffins and cupcakes in
total to the market. Eric makes $4 from each cupcake and $3 from each muffin. How many cupcakes and muffins should he sell to make the maximum profit

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.