What are the solutions of x2 + 20 = 12x.

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

Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia

Explain how you can find the missing fraction in 3 4/5 / (blank) 2 5/7. then find the missing fraction.