A father and his son can clean the house together in 2 hours when the son works alone he takes him a hour longer to clean then it takes his dad alone find how long it takes her son to clean alone

Acompound inequality is graphed, and its graph consists of all real numbers. which open scentence could have resulted in this solution set r> 3 or r< -2. r< 3 or r< -2. r> 3 or r> -2. r< 3 or r> -2 plz asap