Answer:
The answer is (C) ⇒ 
Step-by-step explanation:
∵ (-2x³y) × (xy²) ⇒ add the power of same base
∴ 
∴ Answer (C)
Answer:
What I did not understand the question properly.Is it a original question
Use proportions:
(7x-4)/31 = (4y+8)/24 = (y+2)/6
Multiply:
6*(7x-4) = 31*(y+2)---> 42x-24 = 31y+62 ---> 11y = 86, y = 86/11
I don;t like that is looks 'ugly', instead of sth like y = 88/11=8. I think 86/11 is the answer. Check the math! :)
2x=11
I this this because the look at the equation it says it all or if im wrong ask your teacher