4(a x b)=(4 x a)b is an example of which algebraic property

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online

Need asap. solve for the following inequality

What would the rule be for the reflection of y=-3