Could someone please help me on this equation?

Asequence is defined recursively using the formula f(n + 1) =f(n) - 5. which sequence could be

18 16 11 45 33 11 33 14 18 11 what is the mode for this data set

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.