Helen has 30 tickets. gina has 20 more tickets helen. what percent of tickets must gina give helen so that both of them can have the same number of tickets

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]

In a circle, a 45° sector has an area of 32π cm2. what is the radius of this circle? 32 cm 12 cm 16 cm 8 cm

What is the order of magnitude for the number of liters in a large bottle of soda served at a party