Answer:
10,000 miles
Step-by-step explanation:
First of 25,000 miles =8,000 dollars to the cars worth so the maxium account you can add to the mileage is 10,000 in order to keep the regulations and guidelines of car companies.
You know that she runs 4 miles every day, so we can set up the equation:

For any given day you just plug that number in for 'd' and it will give you the total number of miles.
Answer:
x = 3
Step-by-step explanation:
AC and BD are going to be the same measure. We can make an equation and solve for x.
3x + 1 = 4x - 4
~Add 1 to both sides
3x = 4x - 3
~Subtract 4x to both sides
-x = -3
~Divide -1 to both sides
x = 3
Best of Luck!