Which products result in a perfect square trinomial? Select three options.
(-x+9)(-x-9)
(xy + 2xy + x)
(2x-3)(-3+2x)
EWESHANAM
(16-x2)(x2-16)
(4y2 +25)(25 +4y2)

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