Anafyre each of the following transactions by showing the effects on the accounting equation-specifically, identify the accounts and amounts finciuding + of ) for esch transaction. Note: finter all amounts as posilive values. a. The company provides $20.000 of services on crodit. b. The company estimates that $900 af its accounts receivable is uncollectible. c. The company writes off a customer's entire $300 sccount as uncolloctible