Perform the indicated operation.
$\text{168 mi ÷ 6}$

Fill in the blank to convert as indicated.

$13,200ft{=}_{}$__ mi

Fill in the blank to convert as indicated.

__ yd

Perform the indicated operation.

5 yd 2 ft + 7 ft 1 ft

Perform the indicated operation.

$21\text{ yd 2 ft}\times 5$

Perform the indicated operation.

$24\text{ ft 3 in - 11 ft 8 in}$