The meals for all 9 cost 9x5 = $45
225-45= $180 which represent the entrance fees for all 9.
We divide that to 9 and we get the entrance fee per student!
180/9 = $20 / fee per student!
Answer:
y = -2x + 2
Step-by-step explanation:
The equation of a line is y = mx + b.
First we want to find m, the slope. We can used the coordinates to do so: 
Now we know that the equation is y = -2x + b. We can plug in the coordinate (3, -4) to find b.

So the equation is y = -2x + 2.
Answer:
x4+7x+3
Step-by-step explanation: