A Identify the degree of polynomial for each given expression. Please write your answer in the given shape. (The degree of a term is the sum of the exponents of the variables that appear in it, and thus is a non- negative integer) Example: 8X y + 6xyz-2x^2 +1 The degree of polynomial is 7. ' 7 1. 10xyz-x'y +xyz 2. ab + 2ab-4a 3. cde-ef g + de? 00000 4. abc-2abc? + b c 5. mn -2mn + 4m?n​