Lydia was comparing the price of grapefruit juice at two stores. The equation y = 1.7x represents what Lydia would pay in dollars and cents, y, for a bottles of
grapefruit juice at store B. Lydia can buy 7 bottles of grapefruit juice at Store A for a
total cost of $12.60.
How much less is a bottle of grapefruit juice at Store B than
at Store A?