Step-by-step explanation:
please check your question once and chose correct answer which one is helpful to you
For determining the correct degree of a polynomial, you need to look at each term and find the degree by adding the exponents of each variable in it. The largest degree is the degree of the polynomial.
7x^6 has largest degree of the given polynomial, so your answer is D.6
I think the answer to (Y) may be 40 cubic units