Jeb took 1 hour 40 minutes to complete a road race that was three laps around a section of the city. he took 1/4 of the total time to run the first lap and 1/3 of the remaining time to run the second lap. the rest of the time was used to run the third lap. how many minutes did it take jeb to complete the race? how many minutes did he take to run the third lap of the race?

Problems and applications q5 four roommates are planning to spend the weekend in their dorm room watching old movies, and they are debating how many to watch. here is their willingness to pay for each film: willingness to pay (dollars) shen antonio dmitri jake first film 10 9 8 3 second film 8 7 6 2 third film 6 5 4 1 fourth film 4 3 2 0 fifth film 2 1 0 0 within the dorm room, the showing of a movie a public good. if it costs $12 to rent a movie, the roommates should rent movies in order to maximize the total surplus. suppose the roommates choose to rent the optimal number of movies you just indicated and then split the cost of renting equally. this means that each roommate will pay $ .