<u>Answer:</u>
The degree of this polynomial is 3.
<u>Step-by-step explanation:</u>
The degree of a polynomial is the highest degree of its individual terms (also known as the monomials) which have a non-zero coefficient.
Here in this case, we have the following polynomial:

Each term has degree equal to the sum of the exponents on the variables. So for a term with two variables has the highest degree: 
1 for x and 2 for y: 1 + 2 = 3
Therefore, the degree of this polynomial is 3.
3 packs of 10 with 3 left over or 2 packs of 10 and 7 singles
Answer:
-1.9f-20
Step-by-step explanation:
-2.7f+0.8f-16-4
<em>Collect similar items</em>
-2.7f+0.8f=-1.9f
=-1.9f-16-4
<em>Subtract the numbers</em>
-16-4=-20
=-1.9f-20