I need to know the value of x and y.

If f(x)= 3x+6 which of the following is the inverse of f(x)

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?

Which of the following scenarios demonstrates an exponential decay