9.9k views
2 votes
I need it fast please

I need it fast please-example-1

2 Answers

6 votes
It’s B.
I have to use 20 characters so....




User Srikan
by
7.5k points
4 votes

Answer:

B. 3m-18n

Explanation:

5m+3n-5m+3(m-7n)

=5m+3n-5m+3m-21n

=3m-18n

User Lidashuang
by
7.5k points