The ratio of blue ribbons to yellow ribbons is 4:3. If there are 21 yellow ribbons, how many ribbons are there altogether?

Which statement is always true? a. square bcdf is a rectangle. b. rectangle gjkm is a square. c. quadrilateral stpr is a trapezoid. d. parallelogram abcd is a rhombus.

The rumpart family is building a new room onto their house. the width of the new room will be 16 feet. the length of the room will be 4% greater than the width. write an expression to find the length of the new room. what will be the area of this new room?

Asphere has a diameter of 10 in. what is the volume of the sphere?