document.write( "Question 632303: The amount A in an account is given by the formula A = p + i where p is the principal and i is the interest. How much interest was earned if an original deposit (the principal) of $4,250 has grown to be $4,530? \n" ); document.write( "
Algebra.Com's Answer #398214 by Tatiana_Stebko(1539)\"\" \"About 
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\"A+=+p+%2B+i\"
\n" ); document.write( "Hence \"i=A-p\"
\n" ); document.write( "\"i=4530-4250=280\"
\n" ); document.write( "Answer: $280
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