What is the quotient t+3/t+4÷(t^2+7t+12)

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

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?