Positive
On kibcdcschoegeoi
Explanation:
Combine like terms.
-2y + 7y = 5y
-4 - 5 = -9
So the answer would be <u>5y - 9</u>
Answer:
a microscope
Explanation:
u cant use the other instruments to find out
A,b and c because everyone of those doesn’t have anything to living things except biology
