I need help with this

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?

The radius of a sphere is 3 inches. which represents the volume of the sphere?

Several paint mixtures are made by mixing blue paint and white paint. paint colors blue paint white paint mixture a 5 cups 12 cups mixture b 6 cups 6 cups mixture c 4 cups 12 cups mixture d 5 cups 6 cups which mixture has the highest ratio of blue paint to white paint