Final answer:
Lance and Mary will need approximately $12,995 for a down payment on the property.
Step-by-step explanation:
To calculate the amount of money needed for a down payment, you need to find 20% of the property cost. In this case, the property cost is $64,975.
Step 1: Convert 20% to a decimal by dividing it by 100: 20/100 = 0.2
Step 2: Multiply the property cost by 0.2: $64,975 * 0.2 = $12,995
Therefore, Lance and Mary will need approximately $12,995 for a down payment on the property.