Many people would say "one point six seven" or "one dot six seven".
But technically, it's "<em>one and sixty-seven hundredths</em>".
$13 (?) off the original price of 240 is 229. She will have to pay $229.00
39cents would be the answer
7488in3 in direct form of the eqation is the biggest answer but put 554in3 if in the parlogical form