Fred has $220 in cash
He owes his friend Bob $40
He owns a $350 bed and $710 worth of clothes
He has a debt to his sister for $85
He’s got a fine of $12
The net worth of Fred is calculated as,
[tex]\begin{gathered} \text{Net worth = \$220 - \$40 + \$350 + \$710 - \$85 - \$12} \\ \text{Net worth = \$1280 - \$137} \\ \text{Net worth = \$ 1143} \end{gathered}[/tex]Thus FRed's net worth is $1143 .