Answer: x=2 and y=-1
Step-by-step explanation:

<h2>
Explanation:</h2>
We know some facts:
- There is a toll plaza every 12 1/2 miles along a 300 mile road.
- At each toll plaza drivers must pay $1.25.
First of all, we have to convert the mixed fraction into improper fraction:

Next, let's calculate the total number of toll plaza along the way:

As in every toll plaza, the driver must pay $1.25 then the total cost to drive the whole length of the road is:

<h2>Learn more:</h2>
About total cost: brainly.com/question/1436308
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Answer:
40
Step-by-step explanation:
3+7=10
10x4=40
40/4-7=3