Avery large tank initially contains 100 l of pure water. starting at time t=0 a solution with a salt concentration of 0.7kg/l is added at a rate of 6l/min. the solution is kept thoroughly mixed and is drained from the tank at a rate of 4l/min. answer the following questions.

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?  

The population of a small rural town in the year 2006 was 2,459. the population can be modeled by the function below, where f(x residents and t is the number of years elapsed since 2006. f(t) = 2,459(0.92)

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height