You see a sweater regular price is $89 but the store is marking it down to 20% off. if sales tax is 8% and you give the clerk $100, how much change will you get? show your work.

What is the product? (x2+3y+7) [yy+1)

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.