A highway crossed a river that was 4.25 kilometers wide how wide is the river in decameters?

What is the quotient of m^6/5 ÷ 5/m^2? assume m does not equal pl

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap