Ellen is married and lived all year with her husband and two children. She will file married filing separately and claim her two children as dependents. Her son Roger, born May 1, 2006, and her daughter Rhonda, born December 25, 2009, are both U.S citizens and did not provide any of their own support. Ellen's wages were $31,000 and she has no other income. Her tax is $1,090. Ellen's child tax credit is: