QUESTION $7$

$\backslash$table$[[\backslash$table$[[$Price$],[($dollars per slice$],[$of pizza$)]],\backslash$table$[[$Quantity supplied$],[($slices of pizza$],[$per week$)]],\backslash$table$[[$Quantity demanded$],[($slices of pizza$],[$per weeld$]]],[1,10,50],[2,20,=40$