Please help me with this
all 2-18 while i do the rest of my work

Answer:
2.26 13.-8
3.-14 14.-1
4.-12 15.3
5.-15 16.-3
6.-5 17.8
7.-15 18.-20
8.-2
9.39
10.-125
11.-50
12.29
Step-by-step explanation:
Your welcome