15abc squared and 25a3bc find the greatest common factor

What can you determine about the solutions of this system

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.

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.