Factor completely, then place the factors in the proper location on the grid. 3y4 - 2y2 - 5

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

Answer asap evaluate 4-0.25g+0.5h4−0.25g+0.5h when g=10g=10 and h=5h=5.

I'm a polygon i have no parallel lines i am formed 3 line segments i have one right angle two of my angles are angles what am i