PLEASE HELP. YOU WILL BE MARKED BRAINLIEST IF ANSWER CORRECTLY :) Young Jedi Kelkin Soerre was in the middle of intense lightsaber training. So far she had blocked 34 laser blasts with her lightsaber out of 43 tries. How many consecutive laser blasts must she block successfully in order to raise her success rate to 84%? Round your answer to the nearest whole blast.

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