The function h(x)=f(x)-g(x) represents the difference in the amounts of water released

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]

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

6cm10 cma conical paper cup has dimensions as shown in the diagram. how much water can the cup hold when full?