Credit terms are 2/10,N30. At March 31,2018 , there is an unadjusted $2,500 credit balance in Allowance for Doubtful Accounts. The company uses the percentage of recelvables by age category for estimating uncollectible accounts Marx's estimates of bad debts are as shown below. (a) Prepare an aging schedule to determine the total estimated uncollectibles at March 31,2018