Acar rental agency charges $25per day to rent a car and $12.95per day for a global positioning system (gps). customers are charged for their full tank of gas at $4.30per gallon. a car has a 19 gallon tank and a gps. write a rule for the total bill b as a function of the number of days d the car is rented. what is the bill for a 9 day rental?

b = $423.25

Step-by-step explanation:

cost of car rent per day = $25

Cost of GPS rent per day = $12.95

Cost of gas per gallon= $4.30

A car has 19 gallons and a GPS

The cost of gas for 19 gallons = 4.30 * 19

= $81.70

Total bill = b

Number of days = d

b = (25 + 12.95)d + 4.30*19

b = 37.95d + 81.70

When d = 9 days,

b = 37.95(9) + 81.70

b = 341.55 + 81.70

b = $423.25

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step-by-step explanation:

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,