Caroline bought 20 shares of stock at 10 1/2, and after 10 months the value of the stocks was 11 1/4. if caroline were to sell all her shares of this stock, how much profit would she make?
a: $15
b: $10
c: $210
d: $225

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

Pls! does anybody know a shortcut for answering these types of questions in the future?

Simplify this expression.2(10) + 2(x – 4) a. 2x + 16 b. x + 12 c. 2x + 12 d. x + 16