Final answer:
The final answer is 20.
Step-by-step explanation:
To find 5 times the cube root of 128, we need to cube root of 128 first.
The cube root of 128 is 4, because 4 x 4 x 4 equals 128. Now, we can multiply 5 by 4 to get the final answer.
Therefore, 5 times the cube root of 128 is 20.