Rectangles jklm and stuv are similar. the width of jklm is 30 feet and the perimeter is 140 feet. the length of stuv is 8 yards. find the ratio of the area of jklm to the area stuv

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?