Ineed because i don't get how to do it

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?

Choose the more precise measurement. 26.4 cm or 8.39 cm

What is the circumference of a circle with an area of 50.24 cm²?