One poster that is 18 inches long is similar to a painting that is 45 inches long and 30 inches wide. A. What is the scale factor used to reduce the size of the actual painting to the size of the poster? Express the scale factor as a fraction in simplest form. Show or explain how you got your answer. B. What is the width, in inches, of the poster that is 18 inches long? Show or explain how you got your answer. C. All the posters are sized using the same scale factor. A second poster is 16 inches long and 14 inches wide. What are the dimensions, in inches, of the actual painting? Show or explain how you got your answer.