John spent 20% of his money on food. He spent 2/5 of the remainder on a toy. The toy cost $12. What percentage of his money did he spend on the toy? How much money did he have at first?

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.