One lap around a track is 1/4 mile. on monday, stacy ran 11 laps.
a. what was the total number of miles that stacy ran on monday?
b. it took stacy 1/2 hour to run 11 laps on monday. what was stacy's average speed, in miles per hour, on monday?
c. stacy's goal is to run at an average speed of 1 mile every 10 minutes. what is the number of laps that she must run in 1/2 hour to reach her goal?