Answer:
c. 9ft
Step-by-step explanation:

+ 144 = 225
= 81
x = 9
We let x the distance traveled by Car A and y the distance traveled by car B. The speed of car A can be represented as x/2.4 and for Car B is y/4. From the statement given, we can write an equation relating the speed of both cars.
x/2.4 = 22 + y/4
Since y = x, then:
x/2.4 = 22 + x/4
Solving for x, we obtain:
x= 132 meters traveled by both cars
Therefore, Car A has a speed of 55 mph.
5t/13 = -9
5t = -9 * 13
5t = -117
t = -117/5
Its the third and the fourth one