Made suggested fix.

Author: Robin-Cruz

OpenProblemLibrary/CollegeOfIdaho/setAlgebra_01_07_ScientificNotation/17IntAlg_04_ScientificNot.pg

@@ -53,7 +53,7 @@ END_PGML
 # Solution
 
 BEGIN_PGML_SOLUTION
-In decimal notation, [``[$sna] = [$ans]``].
+In decimal notation, [``[$sna] = [$a]``].
 END_PGML_SOLUTION
 
 ENDDOCUMENT();