The ability to quickly calculate a 10 percent discount on an item would be an example of ________,which ________ across adulthood.
A) crystallized intelligence; declines
B) fluid intelligence; declines
C) crystallized intelligence; increases
D) fluid intelligence; increases

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The Answer of The ability to quickly calculate a 10 percent discount on an item would be an example of ________,which ________ across adulthood.
A) crystallized intelligence; declines
B) fluid intelligence; declines
C) crystallized intelligence; increases
D) fluid intelligence; increases

The Ability to Quickly Calculate a 10 Percent Discount on an Item