Find the perimeter

Please hurry​

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

What is the area of the triangle 10 13 12

The graph shows the distance kerri drives on a trip. what is kerri's speed . a. 25 b.75 c.60 d.50