Match each expression to its value and W equals four

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

Which strategy is used by public health to reduce the incidence of food poisoning?

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.