2. The length of a rectangular garden is twice its width. If the given perimeter
is 72 m, calculate the width and area of
the rectangle.
cimeter
722

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?