Box volume = height * width * length. In this problem we want the length, so we solve the given equation for length:
720 in^3
length = -------------------- = 12 in
(15 in)(4 in)
The box is 12 inches long.
Answer:
4/6 or 2/3...............
Yes, because the sample is random. If she had chosen the participants in any way other than randomly, it would not be representative of her entire school.
