Can someone help with this exercise?

Solve the system of equations. y= 2x y= x^2 - 15

Pls will give brainliest and all p. s u can zoom in if u cant see plss

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