Final answer:
There are 216 lists of length 3 that can be made from the letters U, V, W, X, Y, Z with repetitions allowed.
Step-by-step explanation:
To find the number of lists of length 3 that can be made from the letters U, V, W, X, Y, Z with repetitions allowed, we can use the concept of permutations with repetitions. Since there are 6 letters and 3 positions, the number of possibilities is equal to 6 * 6 * 6 = 216. Therefore, there are 216 lists of length 3 that can be made.