12. A bucket contains 40 yellow golf balls and 30 white golf balls. You randomly choose a ball, hit it toward the flag, then randomly choose another ball. Find the probability that the first ball is white and the second ball is yellow. help pls I'm abt to fail this class ​

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

Factor the polynomial, if possible. if the polynomial cannot be factored, write prime. 9n^3 + 27n^2 – 25n – 75

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18