Word form for 1,205.57

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

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.

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great