A bouncing tennis ball starts at a height of 6 feet off of the ground, this is 72 inches off of the ground. Each time it bounces it comes back up to 2/3 of the height. Which answer choice shows the correct explicit equation in inches?

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