1. 7p^3q - 10p^2q - 5q ...(descending order -- highest exponent to lowest exponent
2. here are ur terms : 7p^3q and 10p^2q and 5q....so there are 3 terms, making this a trinomial.
3. the degree of the polynomial, in this case, is the highest exponent....and that is 3...so it is a 3rd degree trinomial