Which is the better buy: 3 quarts of ice
cream for $9.75 or 2 pints of ice cream
for $12? by how much?

What are the interpretations of the line 3x - 15y = 60? x-intercept y-interception a: x 20 - y -4 b: x 5 - y 20 c: x -3 - y 15 d: x -4 - y 20