Answer:
2c exponent 4 d exponent 4
The second one on the top right
A proportional graph is a straight line that goes through the origin while a non-proportional graph is a straight line that doesn't go through the origin.
y = mx + b
the b represents the y-intercept, so -3 is the y-intercept in the equation y = 3x -3
therefore, the line doesn't go through the origin and is a non-proportional equation
615-138 = 477 you start with 615 take away how many pens are left and then you get your answer