hello please help me solve this question

The product structure is as follows: Bracket Base(1) Spring(2) Clamp (1) Housing(2) Clamp(4) Handle (1) Casting(2) Bearing (1) Shaft(2) Handle(1) Casting (2) b) Determine the gross quantities needed of each item if you are to assemble 125 brackets Base: 125 units (enter your response as a whole number). Spring 250 units (enter your response as a whole number). Clamp 625 units (enter your response as a whole number). Housing: 250 units (enter your response as a whole number) Handle: 625 units (enter your response as a whole number). Casting. 1250 units (enter your response as a whole number). Bearing: 250 units (enter your response as a whole number). Bearing: 250 units (enter your response as a whole number) Shaft 500 units (enter your response as a whole number) c) Compute the net quantities needed if there are 25 of the base and 100 of the clamp in stock. Base: units (enter your response as a whole number). units (enter your response as a whole number). Spring Clamp units (enter your response as a whole number). Housing units (enter your response as a whole number). Handle units (enter your response as a whole number) Casting units (enter your response as a whole number) Bearing units (enter your response as a whole number) units (enter your response as a whole number). Shaft