Answer:
21)21.2132034356
Step-by-step explanation:
=4.2426406871
4.2426406871*5=21.2132034356
-29
I got this by doing:
-4 + 54 = -58 ÷ 2 = -29
1
x-y+xy=1-1+1*1=0+1=1
Answer: 18
Add them all up
18+21+20+14+17=90
Divide by 5 since that is how many numbers there are
90/5=18