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What does plus mean in front of a number?
That it is a quantity larger than zero, or a positive number. They are implied, when not actually written out. They are needed for clarification when talking about negative numbers, as people get confused easily.
How does a quantity that increases exponentially compare to a quantity that increases linearly or quadratically?
In the long term, a quantity that grows exponentially will ALWAYS get larger, eventually, than a quantity that grows linearly, quadratically, or in fact, than any polynomial - basically, a quantity raised to any finite power, such as x cubed, x to the 20th power, etc.
What is true of an index it must be larger than a 100?
No, it does not. It the quantity being measured is less than it was in the base period, ten the index will be less than 100.No, it does not. It the quantity being measured is less than it was in the base period, ten the index will be less than 100.No, it does not. It the quantity being measured is less than it was in the base period, ten the index will be less than 100.No, it does not. It the quantity being measured is less than it was in the base period, ten the index will be less than 100.
What is a standard unit needed to measure a quantity correctly?
To measure a physical quantity correctly and need to compare it with some standard quantities. Thus a standard unit is needed to measure a quantity correctly.
Is lifting 40 lbs of feathers easier than lifting 40 lbs of lead?
Not easier because of the quantity or mass of feathers are larger than 40 lbs of lead
