One of the sisters is 5 years older than bob. the other sister is 4 years younger than bob. the product of bob's sister's age is 70. how old is bob? explain how you got your answer : )

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.