Last year Ted earned an after tax income of 40000 spent 30000 and saved 10000 how much money did he make available to firms for investing?

Ted's after-tax income was $40,000, out of which he spent $30,000 and saved $10,000. The money he made available to firms for investing is the savings he did not spend, which is $10,000. Therefore, Ted made $10,000 available for investment by firms.