you randomly select a number from 0 to 9 and then randomly select a number 0 to 19. what is the probability of selecting a 3 both times?

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?