If the car travels for 126 miles in 3 hours, you want to find out how much miles it can go for in 1 hour.
126/3 = ?/1
To find ? , you need to divide 126 by 3, which equals 42. So 42 miles PER HOUR.
Now, you want to find how many miles in 7 hours. So..
42/1 = ?/7 You need to do 42 x 7. That is 294.
YOUR ANSWER IS 294!!!!