Perpendicular to y=1/3x-2 and passing through the origin

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

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box

What are the first 4 terms in the multiplication pattern given by the formula 2×4n