francesca is participating in a fun run to raise money for the west side children's hospital. the run is held at francesca's high school track. the more laps francesca runs around the track, the more money she raises for the hospital. there is a proportional relationship between the number of laps francesca runs, x, and the amount of money she raises for the hospital (in dollars), y. x (laps) y (dollars) 1 $5 2 $10 3 $15 4 $20 what is the constant of proportionality? write your answer as a whole number or decimal. dollars per lap
