What is the radius of the circle with this equation x2 + y2 - 10x + 8y - 23 = 0

An animal shelter has 21 puppies. if the puppies are 28% of the total dog and cat population , how many dogs and cats are in the animal shelter

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Ten members of balin's soccer team ran warm ups for practice. each member ran the same distance. their combined distance was 5/6 of a mile. to find the distance that each member ran, balin wrote the expression below.