Which matrix equation represents the system of linear equation ?

How do i do this activity, is appreciated

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?

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