The mass of the eiffel tower is about 9.16 ⋅ 106 kilograms. the mass of the golden gate bridge is 8.05 ⋅ 108 kilograms. approximately how many more kilograms is the mass of the golden gate bridge than the mass of the eiffel tower? show your work and write your answer in scientific notation.

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.