A person invests 10000 dollars in a bank. The bank pays 4.75% interest compounded semi-annually. To the nearest tenth of a year, how long must the person leave the
money in the bank until it reaches 19200 dollars?

Restrictions on f(x) = 1/x+5 and g(x) = x-2

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Bobby bought 1.12 pounds of turkey at a cost of 2.50 per pound. carla bought 1.4 pounds of turkey at a cost of 2.20 per pound. who spent more and by much?