If the following jobs are sequenced according to the SLACK rule, then the mean completion time (in days) for all jobs is (assume zero for today's date) 
Definitions:
Solar Rechargeable Batteries
Batteries that can be charged using solar energy, often used in conjunction with solar panels for eco-friendly energy storage.
Marketing Program
A comprehensive plan that combines all marketing strategies and activities aimed at promoting a product or brand to its target market.
Product Life Cycle
A concept in marketing that describes the stages a product goes through from when it is first introduced into the market until it is declined or removed from the market.
3D Printers
Devices that create three-dimensional objects from digital models by layering materials such as plastic, metal, or resin.
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Q15: Profit margin is computed as follows:<br>A) Net
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Q36: The terms data catalog and data dictionary
Q39: _ is the ability of a computer
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Q73: _ demand items are used in the
Q80: What is a bill of material?