Allen is buying a video game that originally costs $49. He has a 10%-off
coupon and will have to pay a 6% sales tax. Which expression will
calculate the total amount Allen will pay for the video game?

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?

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

Solve the formula ax+ by = c for x.