Answer:
A y=mx+b y=3x+50
because $3 is the rate and $50 is what you get started off with
The answer is the temperature goes down 2.8° every hour and the expression is x=-11.2/4 because 4 is how many hours between 6pm and 10pm and its -11.2 because that was how much the temperature dropped from 6pm to 10pm
What is the question ill try to help
The slope is 4/2, simplify to 2/1 or 2.