Find the area of each figure. use 3.14 for "pi"

Need on this geometry question. explain how you did it.

For the inequality |c| < |d| to be true, which of the following must be true?

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?