## Algebra: A Combined Approach (4th Edition)

Let $h$ be the height of the rocket motor. Let $d$ be the diameter of the rocket motor. $h=8+5d$ $h+d=14$ $8+5d+d=14$ $8+6d=14$ $6d=6$ $d=1$ $h=8+5d$ $h=8+5(1)$ $h=13$