A $-1\mathrm{.}10\%$ grade meets a $+0\mathrm{.}60\%$ grade at station $36+00$ and elevation $800\mathrm{.}00$ ft $.$ The $+0\mathrm{.}60$ grade then joins a $+2\mathrm{.}40$ grade at station $39+00.$

Determine the elevation at the low point of the curve.

Express your answer in feet to six significant figures.

$$

Part B

Determine the station at the low point of the curve.

$36+42\mathrm{.}763$

$38+42\mathrm{.}763$

$36+44\mathrm{.}763$

$35+40\mathrm{.}763$