The cost of a security guard is $52.50 the deejay charges $50.98 plus $23.50 use distributive property to write an expression to find the cost of the security guard and the deejay plz

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]

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.