Asking jennifer chooses a playing card at random from a deck of 52 cards then she chooses another one. what is the probability that she will get 2 cards that are hearts?

Adice is rolled 5 times. how many possible rolls are there? ( determine the number of outcomes using only the fundamental counting principal )

Apatient is given 50 mg dose of medicine the medicines effectiveness decreases every hour at a constant rate of 40% what is the exponential decay function that models this scenario how much medicine will be left in the patients system after 2 hours

43lbs of tomatos cost $387. how much would 41lbs cost