Lydia is going to drive from her house to City A without stopping. Let DD represent Lydia's distance from City A tt hours after leaving her house. A graph of DD is shown below. Write an equation for DD then state the slope of the graph and determine its interpretation in the context of the problem.

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

Vanessa earns a base salary of $400.00 every week with an additional5% commission on everything she sells. vanessa sold $1650.00 worth of items last week.

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)