33) What value for x makes this equation true? 4x + 3 = 23

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?

This question awards 100 ! i really don’t want to fail i will also mark you !

How do you write something in scientific notation?