Quinn is baking cookies for the bake sale at her school using her grandmother recipe. She uses 12.5 cups of flour to make 5 dozen cookies. Find the constant of proportionality

2.5
Because 12.5 divided by 5 is equal to 2.5
for every dozen she makes she will use 2.5 cups of flour

I’m going to infer you said parallel.solve for yy= -1/2x+7/4lines that are parallel have the same slope, different y intercept.so we know m is -1/2then from there solve for y intercept.