The area of The of the unshaded region is 19.5cm^2. What is the area of the rectangle? OA) 39cm OB) 19.5cm^2 OC) 9.75cm^2 OD) 4.8cm^2

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step-by-step explanation:

95.03 is the answer. hope this !

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step-by-step explanation:

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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).