Ithink it is a check my answer? what function equation is represented by the graph? f(x)= 4 x +4f(x)= 4 x +5f(x)= 3 x +5 f(x)= 3 x +4

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