Alex had y toy cars. he gave 11 of them to his friend. later his dad bought him twice as many toy cars as he had in the beginning. how many toy cars did alex have in the beginning of this story if now he has 55 of them?

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.