Can someone explain how it jumped from 4pi*350/10pi=m to 144

Item 1 solve for s. s+24=90 −114 −66 66 114

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.

Francesca had 32 cups of flour and she uses 3/8. how much flour did francesca use? write the equation.