Joe deposits $30,000 for his retirement in an account with a 6% simple interest rate. how long will it take joe to earn $21,600 in interest? 5 years 7 years 10 years 12 years

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.