Final answer:
To find the percent equivalent to two-thirds, divide 2 by 3 and multiply the result by 100.
Step-by-step explanation:
To find the percent equivalent to two-thirds, we can use the formula:
Percent = (Part/Whole) x 100
In this case, the part is 2 and the whole is 3. Plug the values into the formula:
Percent = (2/3) x 100 = 66 and two-thirds percent
Therefore, the answer is c) 66 and two-thirds percent.