The grosss income, in dollars, that a company makes from selling x items can be modeled by the expression 5x+3. it cost the company 3-2x dollars to make x items. what is the expression that represents the company's profit if it makes and sells x items? profit=income-costs

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is