Which choice gives the radius of the circle represented by the equation? x squared y squared 225
a. 225
b. 112.5
c. 15
d. square root of 25

Is the orthocenter of a triangle on the inside ?

Write two subtraction equations that are equivalent to 5 + 12 = 17.

(! ) three cylinders have a height of 8 cm. cylinder 1 has a radius of 1 cm. cylinder 2 has a radius of 2 cm. cylinder 3 has a radius of 3 cm. find the volume of each cylinder