John is 1.7 meters tall and ken is 1.5 meters tall. what is the difference in their heights, expressed in centimeters? 0.2 cm 2 cm 20 cm 200 cm answer ! worth 15 points

Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?

Two trains leave stations 546 miles apart at the same time and travel toward each other. one train travels at 95 miles per hour while the other travels at 115 miles per hour l. how long will it take for the two trains to meet

How would you describe the difference between the graphs of f(x) = 2x2 and g(x) = -2x2?