Mr. Sanchez makes $64,200 a year and has to pay an 18%
income tax. How much does he
owe in income taxes?

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?