Iam takin math two, is there any online free tutor that could me? i’m struggling . or a youtube channel to 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

Can someone tell me if this is perpendicular? !

Qrst is a parallelogram. determine the measure of ∠q pls