Noah had 140 to spend on toys. He buys a train, a plane, and a toy car. That means he spent 20 on the train, 30 on the plane, and 10 on the toy car. How much does he have left?

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.