ok so
so we have to convert the feet to inches since the area canot be converted
14 feet times 12=168 inches
area of floor=legtht times width
in a square, legnth=width
therefor
14 feet times 12=168 inches
legnth=168=width
area=168 times 168
area= 28224feet
so
so each tile covers 192 ft^2
so
28224 ft^2 is coverd by xnumberoftiles times areacoveredbyeachtile
28228=x times 192
divide both sides by 192
147=x
answer is 147 tiles