9 increased by the quantity of b added to 10

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319

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.

What rotation was applied to triangle def to create d’e’f’?