a car rental offers two plans-plan a $20per day and 12 cents per mile -plan b -$65 per day free unlimited mileage

And???

the two plans are modeled by

a = 20+0.12x
b = 65

now do with that what you will

To determine which car rental plan is more cost-effective, we need to compare the total cost of both plans based on the number of days and miles you plan to drive.

1. Plan A:
- Cost per day: $20
- Cost per mile: $0.12

To calculate the total cost with Plan A, multiply both the number of days and miles by their respective costs:
Total Cost with Plan A = (Number of days * $20) + (Number of miles * $0.12)

2. Plan B:
- Cost per day: $65
- Free unlimited mileage

To calculate the total cost with Plan B, multiply the number of days by the daily cost:
Total Cost with Plan B = Number of days * $65

Now, based on your specific driving needs (number of days and miles), you can determine which plan is more cost-effective:

- If you plan to drive a significant number of miles per day, Plan B might be more cost-effective due to its unlimited mileage.
- If you plan to drive fewer miles per day, Plan A may be more cost-effective, as the cost per mile is lower.

To make a decision, compare the total cost for both plans based on your estimated number of days and miles. Select the plan that results in the lower total cost.