In the sentence below, underline each common noun once. underline proper nouns twice. rewrite each sentence correctly.

On 5, there should be a comma before and after "Shannon".

Mother is not a proper noun because it is not what you are calling her. If it said something like, "Mother is the new principle", that would be proper. If I said "my mom" it wouldn't be proper, but if I said "Mom" (as if it were her name) it would be proper. 

6(2x + 5y)6 (2x) = 12x6 (5y) = 30y12x + 30y

Bis the correct answer