<span>Given the two end of the diameter of the circle, we are able to compute the center of the circle as 0.5*[(-1,3)+(7,-7)]=(3,-2). The radius of the circle is 0.5*sqrt[(-1-7)^2+(3+7)^2]=sqrt(41). Therefore the equation of the circle is (x-3)^2+(y+2)^2=41.</span>
The amount of money found under the couch cushion is $1.99
Amber could have used cross multiplication.
Have a great day!!!!
The missing fraction would be

since it is exactly in the halfway between
If arc =AB is equal to arcCD then line AB should equa lineCD