Given the following equations A, B, and C, what compound(s) in equations B and C would have to be canceled entirely out in order to yield equation A?

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )