The measure of an angle is 9°. What is the measure of its supplementary angle?

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

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

Acircle has a circumference of 7.850 units. what is its radius?