How many quarts of pure antifreeze must be added to 6 quarts of a 30% antifreeze solution to obtain a 50% antifreeze solution

What are the domain and range of the function? f(x) = -4 (sqrt)x

Turner's mom measured his room to see how long the wallpaper border needed to be. if two walls are 15 feet long and two walls are 12 feet long, how long should the strip of border be cut?

Find the multiplicative inverse of 8-12i