In mia's video game, she started at level 1. mia then moved upone level for every ten thousand points she scored. at the end of the first week, she had scored a total of 68,200 points. what level did mia get to at the end of the first week?

Can someone explain the elimination method to me for this problem?

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

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9