On a beach trip, lucy rents a bike from "wheels by the waves", where they rent bikes for $12 plus $3 per hour. if lucy spent $30, how many hours(h) did she rent a bike?

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]

Which is the completely factored from of xy^3-x^3y

Atemperature of 1.64◦f corresponds to answer in units of ◦c.