If the circumference of a circle measures 3 4 π cm, what is the area of the circle in terms of π?

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]

Me because some of question i don’t understand

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other