How to get an equation from a table

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 is the solution set of the quadratic inequality x^2-5< or equal to 0

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?