175% as a fraction or a mixed number

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

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

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet