Betty, a single taxpayer with no dependents, has the gains and losses shown below. Before considering these transactions, Betty has $45,000 of other taxable income. What is the treatment of the gains and losses and what is Betty's taxable income? 1245 Gain $18,000 1250 Gain 3,000 Business equipment long-term casualty loss (8,000) Business real property long-term casualty gain 12,000 1231 Gain 13,000 1231 Lookback Loss (2,000)