Find the surface area. 10 ft 3 ft 5ft​

Evaluate the dot product of (3,-1) and (1,5)

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

Is it greater than or less than7*3_9*2