I need help with these two questions PLEASE

Compute the interest and find the maturity date for the following notes Date Principal Interest Terms Rate June 10 100,000 6.0% 60 days July 14 50,000 7.5% 90 days April 27 12,000 8.0% 75 days The following represents selected information taken from a company's aging schedule Total Current 31-60 61-90 Over 90 Accounts receivable $ 260,000 $ 100,000 $ 60,000 $ 50,000 $ 50,000 % uncollectible 1.0% 5.0% 7.5% 22.0% Calculate the ending balance in the allowance for doubtful accoutns at year end Prepare the adjusting entry if the unadjusted balance in the account is a credit of $10,000Ripley Compnay was organized on January 1. During the first year of operations, the following plant assest expenditures and receipts were recorded Accured real estate taxes paid at the time of purchase of real estate S 2,000 Real estate taxes apid on land for the current year 3,000 Payment to Building Contractor 600,000 Excavation cost for new building 25,000 Cost of real estae purchased ( Land $100,000 and building $25,000 125,000 Cost of parking lots and driveways 15,000 Architect's fees on building plans 10,000 Installation of fences around property 4,000 Cost of demolishing old building on land 21,000 Calculate the cost of the following Land Land Improvement Building