Complete the question properly
You can't add the same number to 2 different numbers and get the same answer, so no.
Sorry, I got a little confused with your question, but this will definitely help (I hope)
Y=mx+b
m=slope and b=y-intercept
This is just in case: y=range and x=domain(you don’t really need these though)...Best of luck to you:)
220/550 = 0.40
0.40 * 100 = 40%
40% of students ride the bus