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A garage wishes to analyse the costs of servicing its range of cars. The costs of servicing cars over the past month are shown. 250 200 375 394 415 405 340 365 417 400 336 245 280 442 422 460 300 405 417 435 193 275 355 225 318 375 390 149 390 468 390 345...

$100,000 is divided into two investments with annual returns of 4% and 7.5%. find the amount invested at the lower rate if the total income at the end of the year is $5050?

mr. brown is in the 10-percent federal income tax bracket and wants to invest $8000 in interest-earning assests. Mr. Black is in the 35-percent bracket and wants to invest $15,000 . The current rate on a typical high-quality tax-exempt municipal bond is 5...