Which expression is equivalent to a + (c + 7)? 7 a c a minus (c + 7) (c + 7) minus a (a + c) + 7

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is: