Seven people can paint a bridge in 15 days.
a) How long will it take 3 people to paint the bridge?
b) The bridge was painted in t days, write down an expression, in terms of t, for the number of people needed to paint the bridge

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 california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.