## Physics: Principles with Applications (7th Edition)

$V = 4.1H - 0.018A - 2.7$ Since volume V is in liters, then the units of each of the three terms on the right side of the equation must be liters. The units of 4.1 must be liters/meter, then the units of 4.1H are (liters/meters)(meters) = liters. The units of 0.018 must be liters/year, then the units of 0.018A are (liters/year)(years) = liters. The units of 2.7 must be liters.