Ryan and five friends when I take they decided to split the bill evenly each person

The total bill is $99.60

Step-by-step explanation:

The bill would be $99.60
Because Ryan plus his 5 friends are 6 people in total so you take 16.6 times 6 and get 99.6

Without graphing, we can tell that a solution is going to be (0,-1). This is because in slope intercept form, y=mx+b, the “b” is our “y intercept.”
What this means is: the point on the graph that the given line goes through when x=0. In this case, “b” is -1, so the line will go through (0,-1).