Question 941096
Convert miles to feet
( miles ) x ( feet / mile ) = feet
{{{ 45*5280 = 237600 }}} ft
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Convert hours to seconds
( hrs ) x ( min/hr ) x ( sec/min ) = sec
{{{ 4*60*60 = 14400 }}} sec
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{{{ 237600 / 14400 = 16.5 }}}
Her speed in ft/sec is 16.5