$y = e ^ { t }$ , and Evaluate the Partial Derivative At

Multiple Choice

$\text { Find } \frac { \partial w } { \partial s } \text { using the appropriate Chain Rule for } w = y ^ { 3 } - 8 x ^ { 2 } y \text { where } x = e ^ { s } \text { and }$ $y = e ^ { t }$ , and evaluate the partial derivative at $s = - 2$ and $t = 3$ . Round your answer to two decimal places.

A) $- 8.83$
B) $- 5.89$
C) $- 6.62$
D) $- 2.72$
E) $- 8.09$