Savanna and Porter met to run on the local running track. Savanna arrived late so Porter started running before Savanna arrived. When Savanna began running, Porter had already run 5 laps
-Find out if numbers of laps run by Porter is proportional to number of laps run by Savanna. Justify the response.
-Find formula which expresses number of laps run by Porter in terms of number of laps run by Savanna.