Identify one way to rewrite the expression using the distributive property. expression: 2(9+3) a) (2x9) - (2x3) b) (2x9)+ (9x3) c) (2x9) +3 d) (2x9) + (2x3)

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?