Sam robinson borrowed $11,000 from a friend and promised to pay the loan in 10 equal annual installments beginning one year from the date of the loan. sam’s friend would like to be reimbursed for the time value of money at a 10% annual rate. what is the annual payment sam must make to pay back his friend? (do not round intermediate calculations. round your final answers to nearest whole dollar amount.)

"jake’s roof repair has provided the following data concerning its costs: fixed cost per month cost per repair-hour wages and salaries $ 20,900 $ 15.00 parts and supplies $ 7.70 equipment depreciation $ 2,800 $ 0.35 truck operating expenses $ 5,720 $ 1.60 rent $ 4,690 administrative expenses $ 3,850 $ 0.50 for example, wages and salaries should be $20,900 plus $15.00 per repair-hour. the company expected to work 2,600 repair-hours in may, but actually worked 2,500 repair-hours. the company expects its sales to be $47.00 per repair-hour. required: compute the company’s activity variances for may."