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What is the binomial expansion of (2x-3)^5

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Bill works as a waiter and is keeping track of the tips he ears daily. about how much does bill have to earn in tips on sunday if he wants to average $22 a day? tips by day tips (dollars) monday tuesday wednesday thursday friday saturday $14 $22 $28 $36