The bookshop manager at the university has developed a matrix formula for determining the number of Pure and Applied Mathematics textbooks he should order each year. For 2016, the starting point for the formula is the column matrix. Sp. This lists the number of Pure and Applied Mathematics textbooks sold in 2015. 505 316 Pure Applied O, is a column matrix listing the number of Mathematics and Physics textbooks to be ordered for 2016. Op is given by the matrix formula : 01 = A Sp + B where A = 0.85 0 O 078 and B Determine O , correct to the nearest integer. Pure b. Given that S - 499 Applind representing the number of textbooks sold in 2016, 303 determine O2 (the numbers of books to be ordered for 2017) using the same matrix equation. The matrix formula above only allows the manager to predict the number of books he should order one year ahead. A new matrix formula enables him to determine the number of books to be ordered two or more years ahead. The new matrix formula is On+1-c0, + D where O, is a column matrix listing the number of Pure and Applied Mathematics textbooks to be ordered for year n.