1. **State the problem:** Travis starts with 500 in his lunch account. He spends 26 in September and 37 in October. We need to find how much money, denoted by $, he has left. 2. **Identify the total spent:** Add the amounts spent in September and October: $$26 + 37 = 63$$ 3. **Write the equation for the remaining amount:** The money left is the initial amount minus the total spent: $$\$ = 500 - 63$$ 4. **Simplify the expression:** $$\$ = 500 - 63 = 437$$ 5. **Check which equation matches this:** - a. $500 = 37 + \$$ (Incorrect, this implies 500 equals 37 plus the remainder) - b. $\$ = 500 - 26$ (Incorrect, only subtracts September spending) - c. $500 - 57 = \$$ (Incorrect, 57 is not the total spent) - d. $26 + 37 + \$ = 500$ (Correct, total spent plus remainder equals initial amount) **Final answer:** The amount left is 437, and the equation that best solves for $ is: $$26 + 37 + \$ = 500$$