My question say evaluate each expression if x=12 and y=20 and z= 4

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

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?

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2