A deck of cards contains red cards numbered 1,2,3, blue cards numbered 1,2,3,4 and green cards numbered 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 ,16. If a single card is picked at random, what is the probability that the card is blue?

In triangle abc, the length of side ab is 12 cm, the length of side bc is 5 cm, and the length of side ca is 9 cm. find the measure of angle a using the law of cosines.

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?

The center on a target has a diameter of 5 inches. the whole target has a diameter of 25 inches. complete the explanation for what part of the whole target is the center. the center of the target takes up % of the whole target.