Last Friday David rented 4 movies from the video store. This Friday he rented 2 movies. Let x represent the cost of renting each movie. Write and simplify an expression for how much more David spent last week renting movies.

Alcoa was $10.02 a share yesterday. today it is at $9.75 a share. if you own 50 shares, did ou have capital gain or loss ? how much of a gain or loss did you have ? express the capital gain/loss as a percent of the original price