Does anybody know what kind of transformation this is? a reflection, rotation, translation, or composition?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

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

Solve the equation for b: a= (1/2)(b)(h)