A large tree, b, removes 1.5 kg of pollution from the air each year. A small tree, s, removes 0.04 kg of pollution each year. An urban forest has 1,650 large and small trees. Together, these trees remove 1,818 kg of pollution each year. Which system of equations could be used to find the number of large and small trees in the forest? b plus, 0.04 s equals 1,650.,., 1.5 b, plus s equals 1,818

b, plus 1.5 s, equals 1,818.,., 0.04 b, plus s, equals 1,650

1.5 b, plus 0.04 s, equals 1,650.,., b plus s, equals 1,818

1.5 b, plus 0.04 s, equals 1,818.,., b plus s, equals 1,650