7 - 5 + 14 / 2 + 6. workings pls

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

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

What is the radical expression that is equivalent to the expression 27 1 over 5?