A local boys club sold 156 bags of mulch and made a total of $459. It sold two types of mulch: hardwood for $3.50 a bag and pine bark for $2.75 a bag. How many bags of each kind of mulch did it sell?

Which statement best explains whether the table represents a linear or nonlinear function? input (x) output (y) 2 5 4 10 6 15 8 20 it is a linear function because the input values are increasing. it is a nonlinear function because the output values are increasing. it is a linear function because there is a constant rate of change in both the input and output. it is a nonlinear function because there is a constant rate of change in both the input and output.