Consider a tank filled initially with 10L of water. Saline (2% w/v NaCl)is added at a rate of 2L/hr, where it is mixed thoroughly by an ideal mixture. At the same time, the contents of the tank are allowed to drain out, also at the rate of 2L/hr. How long does it take for the concentration of salt in the outflow stream to reach a value of 0.25% (w/v)?

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18

Questions 7-8. use the following table to answer. year 2006 2007 2008 2009 2010 2011 2012 2013 cpi 201.6 207.342 215.303 214.537 218.056 224.939 229.594 232.957 7. suppose you bought a house in 2006 for $120,000. use the table above to calculate the 2013 value adjusted for inflation. (round to the nearest whole number) 8. suppose you bought a house in 2013 for $90,000. use the table above to calculate the 2006 value adjusted for inflation. (round to the nearest whole number)

Find the solution on the interval [0, 2pi)