The world produces about 10 million tons of tires per year. Rubber costs 5 • 10⁻³ kr per mg. The world manufacturers about 200 billion tires per year. What is the cost for one rubber tire?

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]

Use long division to indentify (12xto the second power+15x-8)divided by 3x

Let x have probability generating function gx (s) and let un generating function u(s) of the sequence uo, u1, satisfies p(x > n). show that the (1- s)u(s) = 1 - gx(s), whenever the series defining these generating functions converge.