660 feet
given distance varies directly with time (t) then
d = kt ( k is the constant of variation )
find k using the condition d = 264 when t = 0.5
k = [tex]\frac{d}{t}[/tex] = [tex]\frac{264}{0.5}[/tex] = 528
thus d = 528t
when t = 1.25
d = 528 × 1.25 = 660 feet
