In an international track competition, there are five united states athletes, four russian athletes, three french athletes, and one german athlete. how many rankings of the 13 athletes are there when

1. only one nationality is counted?

2. only nationality is counted and all the U. S athletes finish ahead of all the Russian athletes

Solve for x, y, and z. show all steps.

Sara needs to take a taxi to get to the movies the taxi charges $4.00 for the first mile and then $2.75 for each mile after that if the total charge is $20.50 then how far was sara’s taxi ride to the movie

Mason and christian go to the movie theater and purchase refreshments for their friends. mason spends a total of $45.75 on 3 bags of popcorn and 6 drinks. christian spends a total of $71.50 on 6 bags of popcorn and 4 drinks. write a system of equations that can be used to find the price of one bag of popcorn and the price of one drink. using these equations, determine and state the price of a drink, to the nearest cent.