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1) aina have $350000. she buy a car with 10% downpayment. the balance has to be repaid by making monthly installment for 9 years. the interest rate...
r=2MI/(B(n+1))
where r = annual interest rate, I = total interest charges for the installment plan, B = cash balance, n = total number of installments, M = 12 (months)/ 52 (weekly)
2) a man sold 10 perfumes for $X. the cost for a perfume is $300. The markup was 45% based on selling price. Find X.
3) erina bought machine that cost $120000. the useful life of the machine is 8 years. if the salvage value of the machine is $50000, find the book value of the machine after 4 years using the declining balance method.
4) loviena pharmacy receive an invoice dated 12 january 16 for purchased of 150 medicines at $75 each. the retailer was offered trade discount of 12% and 8% with cash discount terms of 8/10, 5/15, an n/30. Find
