You've created the simplified expressions 38c-20 and 29b+41. Now you need to open the locker. Remember, the first number of the combination is the coefficient of b. The second number is the coefficient of c. The third number is the sum of the constants of the two simplified expressions (Hint: The constants in the two expressions are 20 and 41). Enter your answer with a dash between each number. Example: 15-33-41