how many numbers from 32 to 97 are exactly divisible by 9 ?
"option ' b ' 32 / 9 = 3 and 97 / 9 = 10 = = > 10 - 3 = 7 numbers"
add(divide(subtract(multiply(floor(divide(97, 9)), 9), multiply(add(floor(divide(32, 9)), const_1), 9)), 9), const_1)