Find the missing side length. Assume that all intersecting sides meet at right angles. Be sure to include the correct unit in your answer

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

Ill mark the brainliest if you me with the these three questions 7,8,9

Solve 3x-18=2y and 5x-6y=6 by elimination show work