Which perfect squares does the number 104 falls in between?

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 ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

Simplify the expression. -2/5(10+15m-20n)

Could someone with number 1 and 2