If the relationships below are given in the form (input, output), which pairing always describes a function? (number of doors in a car, number of cup holders in the car) (height of a building in feet, height of the building in inches) (beverage charge on a bill, total meal charge on the bill) (distance from home during a trip, time elapsed during the trip)

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.

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

Five friends found a dollar on the ground and decided they each should get 1/5 of it. what amount of money will each friend get? $0.05 $0.20 $0.30 $0.80