Which equation would be used to calculate the rate constant from initial concentrations?

A. Keq = [C]c [D]d
[A]a [B]b

B. k = Rate
[A]m [B]n

C. PV = nRT

-Ea
D. k = Ae RT

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 : )