You have a $100 off coupon for a laptop. There is also a 15% off sale on the laptop. Show TWO ways to find the final price of the laptop of the original price is $600

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

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?