The width is to be 11 feet less than 3 times the height. Find the width and the height if the carpenter expects to use 26 feet of lumber to make it.

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?