Agrocery store sells 12 bottles of water for $13.80. a convenience store sells ten bottles of water for $11.80.which store has the better buy

For this you have to divide the number of bottles by the price. so divide 12 by 13.08 and 10 by 11.80

I’m pretty sure the slope would be 1 since the x and y values increase by 1

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answer:
congruent segments
step-by-step explanation:
congruent segments. take a line, cut it in half, superipose one half over the other half; you'll have congruence.