Answer:
add 2x to both sides
Step-by-step explanation:
-x+2y=-10
2y=x-10
y=1/2x-5
Answer:
4
Step-by-step explanation:
if you put it in y=mx+b form you would get y=4x-8=72
Answer:
-2.5
Step-by-step explanation:
-2 1/2 converted to a decimal is -2.5. So, it would be between 3 and 2 in the negatives.
81000 because 680 rounds up