Y determines how many hours, and x gives you the whole amount.
N=-13/4 because you subtract 3/4 from -5/2
5 because this is equivalent to 9-4 which is 5 meters, this is because he is going up 9 and then goes down 4, do 9-4, which is 5
The model for representing the ratio of the number of orange and green rolls are
.
A model that shows the number of orange and green streamers needed to decorate 3 dorm rooms will be 3O=2G
<h3>What is ratio?</h3>
The ratio is defined as the representation of the one number with respect to the other number. or one number is how many times to the other number.
A model that represents the ratio of different colored streamers.

A model that shows the number of orange and green streamers needed to decorate 3 dorm rooms.
D=3O and D=2G
3O=2G
Hence the models are
and 3O=2G.
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I think that the correct answer is f(-1)=-8 and f(0)=-5
I hope this helps :D