Triangles, squares and hexagons are the only regular shapes which tessellate by themselves. You can have other tessellations of regular shapes if you use more than one type of shape. You can even tessellate pentagons, but they won't be regular ones.
Answer:
D) real GDP will remain the same and price level will increase
Explanation:
The long-run equilibrium is at the aggregate demand curve and the long-run aggregate supply curve. Since the long-run supply curve is vertical, the output does not change. Therefore, when the entire demand curve shifts to the right, the real GDP remains the same, but the price level increases.
