Write an interface named 'Test' with the following behavior: 1. a method 'getDuration' that returns a 'Duration' object. 2. a method 'check' that accepts 3. an integer parameter and returns a 'Result' object. 4. a method 'getScore' that returns 5. a double.

What is the first view you place in your drawing?

Use a software program or a graphing utility with matrix capabilities to solve the system of linear equations using an inverse matrix. x1 + 2x2 − x3 + 3x4 − x5 = 6 x1 − 3x2 + x3 + 2x4 − x5 = −6 2x1 + x2 + x3 − 3x4 + x5 = 3 x1 − x2 + 2x3 + x4 − x5 = −3 2x1 + x2 − x3 + 2x4 + x5 = 5

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