The demand for subassembly

S

is $100$ units in woek $7.$ Each unit of

S

requires $1$ unit of

T

and $1$ unit of

U

$.$ Each unit of

T

requires $2$ units of

V$,1$

unit of

W

$,$ and $1$ unit of

X

$.$ Finally, each unit of

U

requires $2$ units of

Y

and $2$ units of

Z

$.$ One firm manufactures all items. It takes $2$ weeks fo make

S$,1$

week to make

T$,2$

weeks to make U$,1$ wock to make

V$,3$

weeks to make

W$,2$

weeks to make

X$,2$

weeks to make

Y

$,$ and $2$ weeks to make

Z

$.$ Click the icon to view the product structure and the time$-$phased product structure. Construct a gross material requirements plan $($type $0$ if the input box is not used$).$