Oliva has signed up for snowboarding lessons. Her parents set a limit of 400$ for costs for the season. It costs 250$ to get a mountain pass plus 9.5$ for each practice session. What is the maximum number of practice sessions that Olivia can go to?

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.