Why is an economy not in equilibrium when aggregate demand is not equal to aggregate supply

What is the english artist and critic roger fry famous for

Which two of the following tasks would most likely be completed by a biomedical engineer

This brooch contains a miniature picture of american statesman henry clay. likely owned by clay or his ancestors, this brooch is valued for what reason? a. scholastic value b. provenance c. cultural heritage d. market value pls hurry and you