After Elsa baked muffins, her brother ate 4 of them. He ate 2 5 of all of the muffins. How many muffins did Elsa bake? Let m = the number of muffins baked. Which equation will solve the problem? m minus two-fifths = 4 m + two-fifths = 4 4 m = two-fifths Two-fifths m = 4