Irene is disabled and receives payments from a number of sources. The interest payments are from bonds that Irene purchased over past years and a disability insurance policy that Irene purchased herself.

Interest, bonds issued by City of Austin, Texas	$	4,500
Social Security benefits		11,500
Interest, U.S. Treasury bills		1,800
Interest, bonds issued by Ford Motor Company		2,550
Interest, bonds issued by City of Quebec, Canada		1,680
Disability insurance benefits		28,000
Distributions from qualified pension plan		6,900

Calculate Irenes gross income.