Alkana and Hsu together earn $84,326 per year. If Alkana earns $12,468 more per year than HSU, then how much does each of them earn per year?
Mrs Brighton invested $30,000 and received a total of $2,300 in interest. If she invested part of the money at 10% and the remainder at 5%, then how much did she invest at each rate?
Tickets for a concert were sold to adults for $3 and to students for $2. If the total receipts were $824 and twice as many adult tickects as students tickects were sold, then how many of each were sold?