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 of $40,000 represents his total earnings, from which he spent $30,000 and saved $10,000. The amount he made available to firms for investing is his savings of $10,000, as this is the portion of his income that can be directed towards investments. Therefore, Ted made $10,000 available to firms for investing.