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Answer:
A
Step-by-step explanation:
If the price of a hot dog is x, then the price of two hot dogs is 2x, and the price of 3 of them is 3x.
If the price of a drink is y, then the price of 2 drinks is 2y.
So, we have the price of 2 hotdogs and 2 drinks is 4.75.
2x + 2y = 4.75
And the price of 3 hot dogs and 1 drink is 7.75.
3x + y = 7.75
This pair of equations matches those in choice A.
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Comment on the question
We know right away that something is screwy here, because the cost of two hotdogs and 2 drinks should be an even number. 4.75 is not an even number. If we solve this set of equations, we find the cost of a drink is negative—not something you're likely to see in the real world.
So, this is an exercise in writing equations. It has nothing to do with finding real prices.