WILL MARK BRAINLIEST Which of the following is the correct form of the quadratic formula for the quadratic equation ax^2+bx+c=0?

Mary used 1/7 of a spool of ribbon to complete 4 projects. she used the same amount of ribbon on each project. how much ribbon did she use on each project?

What is the relationship between all triangles that can be drawn given the same three angles

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?