Answer:
70
Step-by-step explanation:
You add all the numbers together and then divided by the number of numbers so
90+80+60+50=
280 divided by 4 is 70
Answer:
- Collect like terms and simplify
- Subtract 7 from both sides
Step-by-step explanation:
METHOD 1

METHOD 2

For 10 here is the answer and for 9 i’ll reply to my comment
X^2 - 5xy + 6y^2 = <span>(x - 3y)(x - 2y)
answer is </span><span>C) (x - 3y)(x - 2y)
hope that helps</span>