Jean bought a new car.

In the first 9 ​months, it was driven 9,225 mi.

At this​ rate, the car will be driven 12,300 miles in 1​ year.

.

12/9 x 9225 =4/3 x 9225 = 4 x 3075 = 12300 miles

On average the car was driven at a rate of 9,225 miles/9 months = 1,025 miles/month

Assuming the rate is constant, in a year the car would be driven 1,025 miles/month * 12 months = 12,300 miles.

Driven in 1 year: 12/9 times 9225 = 12300 miles

Jean bought a new car.

In the first 9 ​months, it was driven 9225 mi.

At this​ rate, the car will be driven for 12,300 miles in 1​ year.

9225/9=1025 miles per month. 1025x12=12300 miles in 1 year.

(4/3) of 9225 = 12300

Is this a math homework problem? If so multiply 9225 by 12/9 to get 12,300 mi

If this is a real life scenario then there's no telling. Maybe she'll stay home for the holidays. Maybe she'll get into a crash and be unable to drive the last 3 months. Murphy's Law.

We do not know. The car will be repo-ed tomorrow because Jean has not been making the payments for 3 months.

12300 miles per year

9225/9 = 1025 per month x 12 = 12300 per year