The diagram shows part of a regular polygon shaded in green. The interior angle is (28x+4)°.
The exterior angle is (5x+11)°.
How many sides does the polygon have?

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?

What is the graph of the absolute value equation ? y=|x|-5

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?