16.(3 points) The following information pertains to R:

Gross accounts receivable balance as of 01-01-15 was $75,000

Allowance for doubtful accounts balance as of 01-01-15 was $4,000

Total sales during 2015 (all sales were on a credit basis) were $870,000

AR write-offs during 2015 were $3,000

R's 12-31-15 AR aging analysis indicates a required balance in the allowance for doubtful accounts of $4,750.

The NRV of R's receivables as of 12-31-15 was $90,000.

On the basis of the above, how much cash did R collect from its ARs during 2015?