The Cinema Center consists of four theaters: Cinemas I, II, III, and IV. The admission price for one feature at the Center is $5 for children, $7 for students, and $9 for adults. The attendance for the Sunday matinee is given by the matrix       Children    Students    Adults   Cinema I   240       120       60   . A  =   Cinema II 95       180       240   Cinema III 300       70       120   Cinema IV 0       250       240 Write a column matrix B representing the admission prices. B =            Compute AB, the column matrix showing the gross receipts for each theater. AB =

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Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.