Aproportion is an equation that states two are equal

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

The rectangle shown has a perimeter of 108 cm and the given area. its length is 6 more than five times its width. write and solve a system of equations to find the dimensions of the rectangle.

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why?