a cruise line sells tickets to two kinds of passengers, luxury and economy class. suppose the economy passengers play $600 per ticket, while luxury passengers pay $300. The cost (

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.

explanation:

previous steps have made pa≅ pb ≅ st ≅ su. setting the compass width to ab allows you to make tu the same length. then δstu ≅ δpab by the sss congruence postulate, and ∠p ≅ ∠s by the reason cpctc.