The area of a rectangle is 66 square centimeters. if the perimeter is 50 centimeters ,find the length and width of rectangle.

The graph of y = ax^2 + bx + c is a parabola that opens up and has a vertex at (0, 5). what is the solution set of the related equation 0 = ax%2 + bx + c?

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?

Can some one me with these questions