Put these number in order from least to greatest 6/40 11/20 -7/25 6

What can you determine about the solutions of this system

If a=0.333333 and b=0.55555, what is the value of a+b

Acollege is selling tickets for a winter fund-raiser. one day, krissa sold 14 adult tickets and 8 student tickets for a total of $376. the next day, she sold 7 adult tickets and 11 student tickets for a total of $272. krissa wanted to find the price of one adult ticket, a, and the price of one student ticket, s. she wrote and solved the following system of equations.