Consider the function below. (I) = 3/21+5
of function is vertically stretched by a factor of 2 to give function g, which of the following functions represents function g?
OA g() = 61.3| + 10
OB. 9(1) = 3] + 7
OC. g(x) = 3/1 + 2 + 5
OD. 9(1) = 3/2x + 5

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?