10 cards are numbered from 1 to 10 and placed in a box. one card is selected at random and is not replaced. another card is then randomly selected. what is the probability of selecting two prime numbers?

Brady has a 20 year fixed rate mortgage for $215,500 with monthly payments of 1,305.89.the annual interest rate is 4%. what is the total cost of the principal and interest for this loan rounded to the nearest dollar

The number of nails of a given length is normally distributed with a mean length of 5.00 in, and a standard deviation of 0.03 in. find the number of nails in a bag of 120 that are less than 4.94 in. long.

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?