Charlie runs laps around a track. the table shows how long it takes him to run different numbers of laps. how long would it take charlie to run 9 laps? number of laps 2 4 6 8 10 time (min) 10 20 30 40 50 it will take charlie something minutes to run 9 laps.

There are a couple ways to determine the number of minutes it will take Charlie to run 9 laps, but the easist would be to find out what is happening to each number of laps in order to get the number of minutes. In each case, the number of laps is being multiplied by 5 to get the number of minutes.
9x5=45 minutes.

He is running each lap in 5 minutes.