One of two office clerks in a small company prepares a sales invoice for $4,300; however, the invoice is incorrectly entered by the bookkeeper in the general ledger and the accounts receivable subsidiary ledger as $3,400. the customer subsequently remits $3,400, the amount on the monthly statement. assuming there are only three employees in the department, the most effective control to prevent this type of error is

Using predetermined totals to control posting routines.

Explanation:

A validation methods to avoid errors is the batch total control, that verificate the transcription errors and transportation errors.

Validations aims to make sure that data is sensible, reasonable, complete and  within acceptable boundaries.

The batch total checks that something is not missing by adding together a number field in different records and checking the total. For example, if an invoice has three items costing 1,2 and 3, the control will look for a batch total of 6.

send the charted data

the first successful, urban blues recording, selling more than 75,000 copies, was made in year 1920.

mamie smith recorded the first commercially successful example of the urban blues,   with the recording of “crazy blues”."crazy blues" was recorded on august 10, 1920, in new york city. within a month of the release of “crazy blues” it had sold 75,000 copies.