3rd time i ask this to answer need 2 aanswers will mark as brainliest

3) i think the answer is A) mike is faster than Mitchell because mike took less time to run the 100 yards

4) the answer is A) ball 1 because it took only 10 seconds to cover 100cm while ball 4 took the same 10 seconds but only covered half the distance and we eliminate ball 2 and 3 because they took 20 seconds which is more than 1 and 4

in short
3) A
4)A

It's cell theory. easy name i would think.