Each week, christian earns $x fixing bicycles and receives $10 as his allowance. to find how much he will earn in total over 2 weeks, christian calculates : x + 10 + x + 10 what is another way christian can calculate how much he will earn in total over the 2 weeks?

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

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)

When solving this problem: 3025/5.5 = a/90.75 you get 49912.5 which would be the length of one of the sides of a square when the area is only 90.75 inches. is that answer correct, why, and how is it possible?