In one hour, ed used 2/5 of the time to complete his homework and 1/4 of the time to check his email. how much time did he spend completing homework and checking email? write your answer as a fraction

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.