Is y=0.3x proportional

Given the following similar triangles what is the area of triangle b ? a) 1 b)1.8 c)3.2 d)5

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

5x−4≥12 or 12x+5≤−4 can you with this problem