If the gradient of a line is 4,what is the gradient of the line which is perpendicular to a? if the gradient of a line, b, is -3,what is the gradient of the line which is perpendicular to b? if the gradient of a line, c,is two thirds what is the gradient of the line which is perpendicular to c?

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.