The outside temperature at a place is - 20 degree Celsius and it drops 5 degrees every hour. How long it will take to reach the temperature zero degree Celsius?

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?

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers

Solve the inequality and graph 6j - 7 < 5