(15+10= 25) times 8 is 200. 200 divided by 4 is 50. So no , therefore it isnt 35. Its 50.
The formula is y2-y1 divided by x2-x1 So now-5+7divided by -2+1 =2/-1= -2
Answer: 
Step-by-step explanation:
We will <em>collect like terms</em>, then we will add each variable up through addition and subtraction (simplify).
<u>Step 1</u><u>: Collect like terms.</u>

<u>Step 2</u><u>: Simplify the expression.</u>

~I hope I helped you :)~