Asignal can be formed by running different colored flags up a pole, one above the other. find the number of different signals consisting of 8 flags that can be made using 4 white flags, 2 red flags, and 2 blue flags

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.