Find the area of this composite figure

One positive number is 9 more than twice another. if their product is 95, find the 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?

Which of the following vectors are orthogonal to (2,1)? check all that apply