Abaseball team is ordering equipment for their practice sessions. for every two bats they order they also order 9 balls. the coach decides to order 12 new baseball bats. how many balls did he order ?

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil