If a cone-shaped water cup holds 23 in.³ has a radius of 1 inch, what is the height of the cup? use 3.14 for pi. round your answer to the nearest hundredth.

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

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

Eden has a part time job. she is paid ? 7.20 an hour the week she worked 18 and a half hours how much is she paid