A swimming pool that measures 12 feet by 30 feet has an average depth of 6 feet and contains 16,100 gallons of water. If water is drained from the pool at the rate of 700 gallons every 3 days, how many days will it take to drain the pool completely? ​

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.