Complete the statement relating solutions and roote

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Convert 2000 swiss francs to dutch guilders

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?