Question 7 3 pts
John left the museum and drove south at a rate of 45 mph. Sally left two hours later driving 20 mph faster
than John in an effort to catch up to him. How long did Sally have to drive to catch up with John?
O 6.2 hours
O 4.5 hours
O 6.5 hours
8.6 hours

it’s supposed to be -4+45=41

step-by-step explanation:

3+x

step-by-step explanation:

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).

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step-by-step explanation:

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