WHAT I CAN DO: Directions: This activity will apply your knowledge on illustrating rational algebraic expression in real-life situation. Activity 4. Can you help John? John has given a task to determine if the given expression is a rational algebraic expression or not. Write H if it is a rational algebraic expression and A if it is a non-rational algebraic expression. 64r 1.- m3+5n-170 3abc 4.- m-5