A tortoise and hare decide to race 30 feet. The hare being much faster, decides to give the tortoise a 20 foot headstart. The tortoise runs at 0.5feet/sec and the hare runs at 5.5feet/sec. How long does it take for the hare to catch the tortoise

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.