Claire's backyard is in shape of a rectangle and has a length of 19.5 feet. it cost her $945 to fence in the yard. if fencing costs $15 per foot, what is the width of claire's backyard?

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.