Keith asked 30 people whether they knew how to play whist or dominoes. fifteen of them knoew how to play whist and 20 knew how to play dominoes. five people did not know how to play either game. create a venn diagram to determine how many knew how to play both games.

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.