Food A has fewer calories per serving.
I found this by taking the first food (A) and dividing 150 by 3. This gave me 50, which I added onto 150 to give me my 4/4 of a serving (200 calories).
With food B, I did the same process. I took 250/2 and added that to the original amount to get the final third of the serving, which resulted in food B being 375 calories.
Slope intercept form is y=mx+b.
Y and x stay.
M is your slope.
B is your y-intercept.
Hope that this helps!
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Given information
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100% = $27.60
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Rewriting it
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Find $4.14 in percentage
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Answer: 15%------------------------------------------------------
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Find $31.74 in percentage
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Answer: 115%------------------------------------------------------