Simplify (4x/2 + 8xy + 2y/2) - (- 9x/2 - 4xy - 7y/2)

What is the area of triangle abc if a = 8, b = 11, and c = 15?

The function v(r)=4/3pir^3 can be used to find the volume of air inside a basketball given its radius. what does v(r) represent

Joanie watched 1 out of three of a movie in the morning