Thomas has finished 4 problems of his weekly math homework. If he needs to solve a total of 20 problems, which of the following shows the equivalent of the percentage of his math homework Thomas still needs to complete? A. B. C. D.

Answer 1

To find the percentage of his math homework that Thomas still needs to complete, we can use the formula:
Percentage = (Number of problems remaining / Total number of problems) * 100

Since Thomas has finished 4 problems, the number of problems remaining is 20 - 4 = 16.
So the correct option would be:

C. 80%