10. The value of the 8th term is 78. The sequence is increasing by 10 at each step.
Explicit equation: y = 10x - 2
Recursive: now = previous term + 10
Find the 9th term.
Explanation:

Aschool typically sells 500 yearbooks each year for 50 dollars each. the economic calls does a project and discovers that they can sell 100 more yearbooks for every $5 decrease in price. the revenue for yearbook sales is equal to the number of yearbooks sold times the price of the yearbook. let x represent the number of $5 decrease in price. if the expression that represents the revenue is written in the form r(x)=(500+ax)(50-bx). to maximize profit, what price should the school charge for the yearbooks? what is the possible maximum revenue? if the school attains the maximum revenue, how many yearbooks will they sell?

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

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