Find the x values of x in the parallelogram

Driving 75 mph, it takes alicia 2 hours to reach the airport to go on a vacation. it then takes her 4 hours to get to her destination with the jet traveling at a speed of 400 mph. how many miles does alicia travel to get to her destination?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

How do you determine whether a relationship represented as as graph is linear or nonlinear