John is 1.7 m tall and ken is 1.5 m tall. what is the difference in their heights, expressed in centimeters?

0.2 cm

2 cm

20 cm

200 cm

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?

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

Find the solution of this system of equation -7x+y=-20 9x-3y=36