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Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

Let hh represent the number of hummingbirds and ss represent the number of sunbirds that must pollinate the colony so it can survive until next year. 6h+4s > 746h+4s> 74 this year, 88 hummingbirds pollinated the colony. what is the least number of sunbirds that must pollinate the colony to ensure that it will survive until next year?

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83