Explain how you can use structure to find the last number in the bottom row

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

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?