The populations of two cities after t years can be modeled by -500t + 250,000 and 200t + 300,000. What is the difference in the populations of the cities when t = 5?

Alarge tank is filled to capacity with 500 gallons of pure water. brine containing 2 pounds of salt per gallon is pumped into the tank at a rate of 5 gal/min. the well-mixed solution is pumped out at the same rate. find the number a(t) of pounds of salt in the tank at time t.

Which of the following statements are false regarding activity-based costing? non-manufacturing costs are important to include when calculating the cost of each product. costs are allocated based on a pre-determined overhead rate. transitioning from traditional costing methods to activity-based costing can be complicated and costly. activity-based costing follows the same basic calculation methods as traditional costing approaches. none of the above

How much more output does the $18 trillion u.s. economy produce when gdp increases by 3.0 percen?