In the figure, assume that angles that appear to be right angles are right angles.
What is the area of the figure?
Use 3.14 for the figure

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?