Answer:
y=0
Step-by-step explanation:
R=3x+9y
(given)
21=3(7)+9y
21=21+9y
9y=21-21
9y=0
y=0
Answer:
2/3
Step-by-step explanation:
rise over run
up and over
A, it’s easy to know because -3 represents the start point in the Y axis. It starts at -3, 2x is the rise/run you move up 2 spaces and then move 1 to the right because it’s positive
So the questions ask to write an equations that shows how much money will be donated and then solve. So let Y be the amount of money and X will be the number of people attending. So the equation would be y=(10-5.5)X so the answer would be Y=2250. I hope you are satisfied with my answer and feel free to ask for more