An oak tree grows at a rate of 33⁄5 inches per month. how much will the tree grow in 6 1⁄2 months?

42.9 inch

Step-by-step explanation:

Multiply the amount of inches per month with the amount of months

33/5 x 6.5 = 6.6 x 6.5 = 42.9

42.9 inch is your answer

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the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).