Determine whether the equation x+x+x+x=4x has a one solutions, no solutions, or an infinite number of solutions determine the two values of x that

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

Can you me find the missing length. i attached an image.

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?