Ava has 0.5 kg of salt. she prepares 18 meals for guests at a restaurant. she uses 5 grams spoon and puts 2 spoonfuls of salt in each meal. how many grams of salt will be left over after all 18 meals are prepared?

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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.