Find the difference: 5/6 - 3/12 = ?

Eis the midpoint of line segment ac and bd also line segment ed is congruent to ec prove that line segment ae is congruent to line segment be

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

Tom drove 206 miles in 3.9 hours. estimate his average speed.