Earl is choosing a class ring. he can choose gold or silver, one of five different gemstones, and either a round or square stone. how many choices does he have?

Passengers usually start to board their flights 1 hour before the scheduled take off time. the gate will be closed 15 minutes before the takeoff time. jack’s plane is scheduled to take off at 12: 05 a.m. if he arrives at the gate at 11: 45 p.m., can he board the flight?

What graph correctly matches the equation y equals two negative x

Just tell me how to set up the equation.