What is 12/6 simplified

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?

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)