find the average of all the numbers between 6 and 36 which are divisible by 5 .
"solution average = ( 10 + 15 + 20 + 25 + 30 + 35 ) / 6 ) = 135 / 6 = 22.5 answer e"
divide(add(add(6, const_4), subtract(36, const_4)), const_2)