Points a and b lie on the graph of the equation y = 7x.
what are the y-coordinates for each point?
point a: (−2, ) point b: (4, )
meh

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?