The cost of 8 muffins and 2 quarts of milk is $18. The cost of 3 muffins and and one quart of milk is $7.50. How much does 1 muf
fin and 1 quart of milk cost
1 answer:
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The point-slope form: 
m = -1; (2; 4)
subtitute
y - 2 = -1(x - 4)
m = -1; (2; 4)
subtitute
y - 2 = -1(x - 4)