Harrison says that to convert a mixed number to a fraction greater than 1, he thinks of it this way: 4 2/4=5/5+5/5+5/5+5/5+2/5=22/5. does his strategy work? explain.

Aclothing store has the sign shown in the shop window. pani sees the sign and wants to buy 3 shirts and 2 pairs of jeans. the cost of each shirt before the discount is $12, and the cost of each pair of jeans is $19 before the discount. write and simplify an expression to find the amount pani pays if a $3 discount is applied to her total