You begin solving the equation 3+4x=51 by subtracting 3 from both sides. which is the best choice for step 2? subtract 48 from both sides. multiply both sides by 4. divide both sides by 4. divide both sides by 48.

Ametalworker has a metal alloy that is 30? % copper and another alloy that is 55? % copper. how many kilograms of each alloy should the metalworker combine to create 90 kg of a 50? % copper? alloy?

Aflagpole broke in a storm. it was originally 8 1 81 feet tall. 2 8 28 feet are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground some distance away. how far away is the end of the pole from the base of the pole along the ground?

What is the surface area of the sphere?