The graph of proportional relationship is the straight line in Quadrant I and start in the origin.
Look at the picture.
A concession stand sells hamburgers. The revenue from the hamburgers is (30x + 45) dollars. The price of a hamburger is $5. Writ
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In order to figure this out, we can set up a proportion and simplify using cross multiplication.
One grapefruit costs 89 cents.
One grapefruit costs 89 cents.