How can a firm use a cumulative expenditures curve--illustrating the firm's historical pattern of product development costs--to guide/improve its future development efforts?

answer; /// the correct answer is (belongingness needs; good luck

answer; first blank(1); 30% two(2); salmonella; i believe this is correct; //good luck;

would it be plagiarism to copy and paste off of here? ?

answer; elasticity of the lungs decreases;