Richard and aiden leave their homes at the same time and walk at a constant speed to the nearby park. Richard's speed is modeled by the equation y = -0.07x + 1.47, where y represents the remaining distance to the park and x represents the time in minutes since he left home.

Aprobability experiment is conducted in which the sample space of the experiment is s={7,8,9,10,11,12,13,14,15,16,17,18}, event f={7,8,9,10,11,12}, and event g={11,12,13,14}. assume that each outcome is equally likely. list the outcomes in f or g. find p(f or g) by counting the number of outcomes in f or g. determine p(f or g) using the general addition rule.