how many numbers from 29 to 79 are exactly divisible by 11
"29 / 11 = 2 and 79 / 11 = 7 = = > 7 - 2 = 5 numbers option ' a '"
add(divide(subtract(multiply(floor(divide(79, 11)), 11), multiply(add(floor(divide(29, 11)), const_1), 11)), 11), const_1)