Answer:
7x³y² - 3x²y² + xy - 5
Step-by-step explanation:
Add like terms.
5x³y² + 2x³y² = 7x³y²
-3x²y² = -3x²y²
-3xy + 4xy = xy
2 - 7 = -5
Put them all together.
7x³y² - 3x²y² + xy - 5
After plugging in X =1 and Y=-3 your answer would be -14
To convert square feet to square yards divide 9 by the number of square feet (I remember that since there are 3 feet in 1 yard and 9 is 3 squared) so 90/9=10. Multiply the 10 sq yds by the price per sq yd: 10x11=120. It would cost $120 :) I hope this helps :)
The way to solve is using order of operation PEMDAS. Its very easy. You should be able to solve it yourself. I'll give you the first 3 answers:
1. g/6=x
2. x=1/2u+1
3. z-m=x
I would give you all the answers but it would be best if you did it yourself. You teacher and parents would be much happier if you learnt the skill. Hope this answer helps! Mark as brainliest! :)
