At a warehouse, boxes of merchandise are placed on shelves in stacks that are 7 boxes high. if each box is 4 3/5 inches in height, how tall is the stack of boxes?

The stack of boxes would be 32.2 inches high because all you've got to do is convert 4 3/5 to a decimal which is 4.6, then multiply it by the number of boxes(7) in which will give you your  32.2 or 32 1/5

4 3/5*7
Convert 4 3/5 into a decimal
4.6*7
Multiply
Final 32.2 or 32 1/5

There is nothing wrong, she has no mistakes.