You cut a large chocolate cake into 8 equal pieces.  you sell 6 pieces of the cake. what fraction of the cake is left?

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?

Aadc is formed by reflecting aabc across line segment ac, as shown in the figure. if the length of ac is 4 units, the area of aadc is square units.