$10$

The table below depicts the relationship between the price level and aggregate demand and aggregate supply.

$01$:$30$:$12$

Aggregate Demand and Aggregate Supply

$\backslash$table$[[$Price Level,$\backslash$table$[[$Aggregate$],[$Demand $($in$],[$millions$)]],\backslash$table$[[$Short$-$Run$],[$Aggregate$],[$Supply $($in$],[$millions$)]],\backslash$table$[[$Long$-$Run$],[$Sugregate$],[$millions$)]]],[90,$$$500,$$$200,$$$400$