a scale 7 ft . 12 inches long is divided into 4 equal parts . find the length of each part .
"explanation : total length of scale in inches = ( 7 * 12 ) + 12 = 96 inches length of each of the 4 parts = 96 / 4 = 24 inches answer : c"
divide(add(multiply(7, const_12), 12), 4)