Which function is the inverse of h(x) = 18x+7/3?

Need ! give step by step solutions on how to solve number one [tex]\frac{9-2\sqrt{3} }{12+\sqrt{3} }[/tex] number two [tex]x+4=\sqrt{13x-20}[/tex] number three (domain and range) [tex]f(x)=2\sqrt[3]{x} +1[/tex]

Solve the equation w^3 = 1,000 i honestly dont know how to punch this into a calculator pls

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry