Caroline bought 20 shares of stock at 10 1/2, and after 10 months the value of the stocks was 11 1/2. if caroline were to sell all of her shares of this stock, how much profit would she make?

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

Stephen thublin invests $1,000,000 in a 45-day certificate of deposit with 6.55% interest. what is the total interest income from the investment?

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?