A circle has a diameter of 10 cm. What is the best approximation of its area? Use 3.14 for piyou need radius not diameter in the formula! (Hint: A = π r2 ) 78.5 sq cm

314 sq cm

31.4 sq cm

15.7 sq cm

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.