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?

If you would like to know how many muffins did Elsa bake, you can calculate this using the following steps:

2/5 of all of the muffins = 4 muffins

2/5 * x muffins = 4

2/5 * x = 4 / * (5/2)

x = 4 * 5/2

x = 10 muffins

The correct result would be 10 muffins.