how to solve

Statistics students in Oxnard College sampled 9 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The data are shown below: Number of Pages (I) Cost(y) 990 78.3 465 38.55 898 69.86 489 41.23 902 74.14 604 45.28 965 74.55 268 35.76 860 82.2 A student calculates a linear model using technology (Statistics Calculator or Computer) y = (Please show your answers to two decimal places) Use the model to estimate the cost when number of pages is 615. Cost = S (Use the linear model with yor four ded coefficients and then round your answer to 2 decimal places.}