For a Rat Learning to Run a Maze, the Learning $S ( t ) = 10 + 8 e ^ { - 0.12 }$

Essay

For a rat learning to run a maze, the learning curve is given by $S ( t ) = 10 + 8 e ^ { - 0.12 }$ , where $S ( t )$ is the time it takes to run the maze in seconds after $t$ days. Use a graphing calculator or computer to graph of the learning curve and determine after how many days the rat is able to run the maze in $15$ seconds.