If the area of the continent in the middle of the list above in problem 9hadvan are of ten million more squate kilometer

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

As a salesperson you get $50/day and $3.60/each sales you make.if you want to make $60 in one day, how many sales would you need need to make ? a 3b 4c 5d 6 show work.

What is the value of x in the equation 1/5x - 2/3y = 30 , when y = 15