Problem: sales price is $ 60 , gross profit is 140 % of cost , what is the value of gross profit ?
Rationale: "cost + profit = sales cost + ( 140 / 100 ) cost = 60 cost = 25 profit = 60 - 25 = 35 answer ( d )"
annotated_formula: subtract(60, divide(60, add(const_1, divide(140, const_100))))