For exercise, Francesca walks laps around a track. She walked 1.68 laps around the track in 7 minutes. If each lap is 440 yards, how fast did Francesca walk? 120 yards per minute
62.9 yards per minute
672 yards per minute
105.6 yards per minute

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.

The radius of a sphere is 3 inches. which represents the volume of the sphere?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ac=26 and ch=8, find bh.