I need help with this question

Which expression is equivalent to sq-80

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.

Kyle cut a 4 foot piece of construction paper to be 6.1 inches wide by 8.2 inches long. what is the area of the piece of construction paper in square inches