What is the radius of the circle given by the equation below?
x2 - 10x=-y2 + 16y-40

Liam's parents are driving three times as fast as liam is biking, but they left later than he did. if his parents caught up with him two hours after he left, how much later than liam did they leave?

Adriveway is 40 yards long about how many meters long is it

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.