6. Evaluate: for x =- 3, y = 1 x-3y 7. Is k = - 6 a solution to the equation – 3k = 12 - k? Show why or why not. 8. Find the perimeter and the area of a rectangle pictured below and include the proper units:

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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.