Select the correct answer for each lettered part.

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

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

Find the value of x. give reasons to justify your solutions! h ∈ ig