You can write a relationship where x<span> will be the distance traveled in </span><span>12</span><span> miles:</span> <span>3.75+1.25⋅x=12.5</span> <span>solve for </span>x: <span>x=<span><span>12.5−3.75</span>1.25</span>=7</span> <span>but </span>x<span> corresponds to </span><span>12</span><span> miles so that Jodi traveled </span><span>7⋅<span>12</span>=3.5</span><span> miles</span><span />
Given the circumfrence we can find the diameter b dividing by pi which will get us 18. We can then divide by 2 to get 9 which is our radius. To get the area we will square our radius :81 and multiply it by pi to get 254.34.
