Which economic advance helped the Sung government grow its economy? -inventing credit and debt
-devaluing the currency
-issuing paper banknotes
-minting gold coins
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answer; /// pinkberry and red mango are different in that pinkberry tries to convey a sense of (playfulness)while red mango tries to communicate (nutritional benefits and

answer:

d. because dr. laguardia selected a widely used measure, his study generalizes to has strong external validity. external validity has limited external validity. other applications of this measure.

the widely used measure that he applied to his experiment was the benton facial recognition test. it employed on to football players and as result, only players who suffered brain concussions did not pas this test. and although it has an external validity, it is limited because it isn't general to apply to other population.

well to answer ur question to be completly honest

c it has to be i googled it