They should use a spreadsheet.
Explanation:
With a spreadsheet all they will need to do is to give formula to the cells and any time they key in the expenses and revenue figures they are going to get their profit for the quarter.
It is more convenient and reliable. It reliefs the user of computation issues.
Answer:
Diffraction
Explanation:
Diffraction occurs when an electromagnetic waves encounter an obstruction and split in secondary waves, these waves continue the same direction that was split.
These waves going to around the object, obstacle with sharp edges could cause detraction, like tables, refrigerators chairs, walls, furniture, etc.
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Answer:
keeping software programs up-to-date
Explanation:
