How can you write repeating decimals as fractions?

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.

What ia the sum if the first 7 terms of the geometric series

Abox holds 500 paperclips. after a week on the teacher's desk 239 paperclips remained. how many paperclips were used?