Let's assume that the faster car has a 2 mile "head start".
The faster car is 1.2 times faster (48/40) than the slower car.
It will take five 2 mile trips to "catch" the other car.
Five 2 mile trips will take 5 * 40 seconds = 200 seconds.
The longest piece is 24 ft and the smallest piece is 4 ft
Answer:
She forgot to flip the inequality sign when dividing both sides by -4
2 42/100 turn it to a fraction