251.3 ft. I am in 5th grade and I know this.
What we need to do first, is to write the equation of the line through points A and B.
the slope of the line through A(3, 7) and B(-4, 9) is

the equation of the line is :

C(a, 1) is on this line so it must satisfy the equation:
Answer:
you subtract then you add on how much money you get know
Step-by-step explanation:
hope that helps
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