What is y^2-10y+9/y^2-1 multiplied by y+4/y^2-5y-36

You have 17 cats that live in houses on your street, 24 dogs, 3 fish, and 4 hamsters. what percent of animals on your block are dogs?

Light travels at 186,000 miles per second. light takes about 1 1? 3 seconds to travel from the earth to the moon. calculate the distance between the earth and the moon based on the speed of light.

Which of the following is true about the following construction of a tangent to a circle from a point outside of the circle?