Answer: Option D.
Step-by-step explanation:
You need to remember that the circumference of a circle can be calculated with this formula:
[tex]C=2\pi r[/tex]
Where "r" is the radius of the circle and [tex]\pi =3.14[/tex]
In this case the distance 150 feet (From the edge of the track to the center of the circle) is the radius.
Since she walks her horse 4 times around the track, you need to multiply the circumference by 4 to calculate the approximate number of feet that she and her horse will travel:
[tex]C=4[2(3.14)(150ft)]=3,768ft[/tex]
