Air containing 0.04% carbon dioxide is pumped into a room whose volume is 6,000 ft3. The air is pumped in at a rate of 3,000 ft3/min, and the circulated air is then pumped out at the same rate. If there is an initial concentration of 0.3% carbon dioxide, determine the subsequent amount A(t), in ft3, in the room at time t. What is the concentration of carbon dioxide at 10 minutes? (Round your answer to three decimal places.)

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.

What is the perimeter of an equilateral triangle if each side is (x+3)?