15. (3 pts) Write the partial fraction decomposition of 2x - 17 x2 - 3x - 416. {2 pts) Write the augmented matrix for the following system of equations. Do not solve. 3x y 20 3x 2x 17. {2 pts) Perform a valid next step to solve the matrix below using the Gauss-Jordan elimination method. Only perform the next step, do not finish the whole problem. 1 8 22 0 2 11 0 1 30 18. {3 pts) The size of the bear population at a national park is currently 175. The following year it was 181. Using this information, assuming exponential growth, predict the size ofthe bear population in 6 years (from the year that had 181). Use A = Age\