You must show your work to receive full credit. Indicate your nal answer with a box . Simplify using exponent rules (5 points: px3 4 x. Factor completely the expression (5 points: x2(x + 4) 9(x + 4) Simplify the rational expression (5 points each: 1 x . 25 x+4 x 5: (5 points) find the domain of the function f (x) = Page 2: two entrepreneurs, dirk funk and tom gugliotta, drove 4500 miles from england to timbuktu, The used an ethanol that is made from old, unusable chocolate, and it took 17 pounds of chocolate to make 1 gallon of ethanol. The table below gives the data for the relationship between the amount of chocolate used and the number of miles driven. (8 points) Miles driven (mi) pounds of chocolate used (lbs) Is this line parallel, perpendicular or neither to the line found in the previous problem.