1. 9b
2.x^5
3.(3y)/12
4.(1-k)+7
Answer: -8
Step-by-step explanation:
3 - (-8) = 3+8
3+ 8=11
All except combine like terms. Since you only have 1 variable.
Hope this helps.
r3t40
Times what by 20% ? If you can ask me the full question i would love to help!