Please help me I need help in this math proplem please do it for me

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

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

Graph the linear function using the slooe and y intercept