He could race multiple cars with different weight added on them and do multiple races (just to be sure) and see if his theory was correct, if not he should right down what he has learned from his experience! :D
-You'll never learn if u don't try ;)
The federal government regulates and controls the economy through numerous laws affecting economic activity.
I hope that answers your question.
wait u go to the school i go to...but u must be in the high school cause my grade dont do biology unless your in 8th
Explanation:
I think it is control group