What is a sector of a circle? what is the area for the sector's formula?

Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function

Miss henderson wants to build a fence around a rectangular garden in her backyard in the scale drawing the perimeter of the garden is 14 in of the actual length of a b is 20 ft how many feet of fencing what you need