Find the mean of the following numbers also plz explain 64,76,63,69,72,76

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

Add. express your answer in simplest form. 12 9/10+2 2/3 = i need u guys to me find the answer to this question

What is the answer to this problem? ignore the work. what is the correct answer?