A $-1\mathrm{.}10\%$ grade meets a $+0\mathrm{.}60\%$ grade at station $36+00$ and

elevation $800\mathrm{.}00ft.$ The $+0\mathrm{.}60$ grade then joins a $+2\mathrm{.}40$ grade at

station $39+00.$

Part A

Determine the elevation at the low point of the curve.

Express your answer in feet to six significant figures.

Elev $=$

$ft$

Part B

Determine the station at the low point of the curve.

$38+42\mathrm{.}763$

$36+44\mathrm{.}763$

$35+40\mathrm{.}763$

$36+42\mathrm{.}763$