Answer:
decreased drastically over the last five decades
Explanation:
I would say it is that answer because a few decades ago we needed huuuge computers that filled rooms to compute simple tasks. Now we have cellphones, which are basically computers that can fit into the palm of our hands. Our phones can do more than what those huge computers of the past did and they're easier to produce. So cost must have drastically decreased.
A, true. Requirements describe the objectives of any assignment.
If you combine maximum values of Red Green and Blue you will get white.
Key signatures were used because simply by knowing how many sharps or flats there were, the tuning would be more uniform. Tuning systems were not developed yet during the Baroque era and the concept of key was not introduced by then.
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