All of the initial examples are like...

Y(math) = b0 + b1*X(rdg) + b2*X(wrtg)

Y(math) = b0 + b1*X(rdg)

...which is pretty straightforward and easy to understand. Naturally, the homework puts in a wrinkle that I'm not confident in answering.

Y = 10,000 + 150*X1 + 25*X1^2 + 60*X2

Y = 9,750 + 145*X1 + 75*X2

The question is if either model nests the other. I am inclined to answer 'No' because they do not contain the same "term". Problem is, I'm not sure if 'term' means variable or parameter - or the combination of both. But it sure seems like neither model is contained within the other.