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john is mixing dry nuts with dry fruit to make some trail mix. the dry nuts cost $2.50 per pound and the dry fruit cost $3.00 per pound. if john wants to make a total of 40 pounds of trail mix to sell at the price $2.80 per pound. how many pounds of dry nuts should john use in the mix?

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.