U need to didvid the donuts price to the pricwao coffe nd the coffe price to donut price

First Consider two points ~ (0 , -3) and (-1 , 0)
Now, use the given formula to calculate slope :
Therefore, the slope of the graph is -3

Answer:
Step-by-step explanation:
He make 420 dollar off them 70 shirts
Answer:

Step-by-step explanation:
I am assuming that you mean (4,−9) and (8, -3).

Hope this helps.