A black car and a green car are traveling at the same speed. The black car drives 3 hours. The green car drives 3.5 hours and goes 25 miles farther than the black car. Use x for the speed of the cars. In the time the green car goes 3.5x miles, the black car goes 3x+25 miles. Which equation can be solved to find how fast the cars are going ?
A)3x+25=3.5x
B)3x-25=2.5x
C)3x=3.5x+25
