Answer:

Step-by-step explanation:
Remember that in order to find the slope of two points you need to substitute the variables and subtract making sure you keep the 2's and the 1's together.

Plugin your numbers:




Hope this helps.
-8=2-4y
-10=-4y
y=5/2 or 2 1/2 or 2.5
Answer:
110 db
Step-by-step explanation:
I would probably say 46 but I’m not entirely sure