Find the area. Round to the nearest tenth.

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?

Find the quotient. 50a2 – 98b2 -5a +7b

How many $20 bills do you need to have to make $280