400+30+8 is how you put 438 in standard form.
Out of your $67 for the day, $40 of it goes to the rental before you even drive it out of the lot. That leaves you $27 a day for mileage.
$27 / $0.18 per mile = <u>150 miles</u> per day, tops.
This is the way to solve the problem
A. 16 minutes.
b. around 3.5 tasks.
