What is the sum of the measures of the interior angles of a pentagon?

The table above shows approximate conversions from gallons to liters. what is the value of x?

The vet charges $45 for an office visit and $10 for each vaccination your dog needs. write an eaquation

Four airplanes carrying a total of 400 passengersarrive at the detroit airport. the airplanes carry, respectively,50, 80, 110, and 160 passengers.a) one of the 400 passengers is selected uniformly at random.let x denote the number of passengers that were on theairplane carrying the randomly selected passenger. find var(x)for x as given in the problemb) one of the 4 airplane drivers is also selected uniformly atrandom. let y denote the number of passengers on the chosen driver’s airplane. find var(y) for y as given in the problem