A woman has a total of $
15,000
to invest. She invests part of the money in an account that pays
10
%
per year and the rest in an account that pays
12
%
per year. If the interest earned in the first year is
$
1720
, how much did she invest in each account?

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?