$1.$ Purchase Order $-$ Green Thumb Landscaping decides to order $5$ new lawn mowers from a vendor named ABC Supplies. Each lawn mower costs $$400.**$Question $1$:$**$ What is the total cost of the lawn mowers on the purchase order?$2.$ Bill Entry $-$ After a week, the lawn mowers arrive, and you receive an invoice from ABC Supplies. The invoice details that the total amount due for the $5$ lawn mowers is $$2000.**$Question $2$:$**$ If the payment is due in $30$ days, how should you track this liability in your records?$3.$ Payment of the Bill $-$ Once the payment is due, Green Thumb Landscaping issues a payment of $$2000$ to ABC Supplies via bank transfer. $**$Question $3$:$**$ What information should be documented when recording this payment in your records?$4.$ Customer Sales $-$ A customer named John Doe visits the store and purchases $2$ lawn mowers for his landscaping business. The selling price of each lawn mower is $$500.**$Question $4$:$**$ What is the total amount that John Doe owes for the $2$ lawn mowers, and how does this sale impact inventory levels?$5.$ Reflection $-$ Consider the entire process of managing these transactions. $**$Question $5$:$**$ Why is it important for Green Thumb Landscaping to maintain accurate records of vendor purchases and customer sales? What potential issues could arise from poor record$-$keeping?