Round 7.21 divided by 7 to the nearest tenth

Which of the following three dimensional figures has a circle as it’s base

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

If you flip a coin 3 times, what is the probability of flipping heads 3 times? a. p(3 heads) = 3/8 b. p(3 heads) = 1/6 c. p(3 heads) = 1/8 d. p(3 heads) = 1/2