The area of a rectangle is 42 milimeter .The length is 7 milimeters. What is the perimter of rectangel?

The area of square garden is 300m squared. how long is the diagonal?

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers

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?