For some reason, the value of "w" is not supplemented into the equation, which is weird, but whatever. I will answer the problem for you.
The answer you are looking for is -5.
Solution/Explanation:
Writing out the expression first
-7/3x+y²
Substituting the given values of the variables, only "x" and "y"
-7/3(6)+(-3)²
Simplifying
(-7/3)(6)=-14
(-3)²=9
So, we will come up with -14+9.
This simplifies to -5.
So, therefore, the final answer to this problem is -5.
Hope this helped answer your question for you. Good day to you.