Ineed on all these questions!
(worth 20 points)

Explain how you can use the associative property to evaluate (7x50)x4.

Find the area of an equilateral triangle with a side of 6 inches

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?