The answer is 7.31 because since it's been divided by 10 decimal moves one place to the left and if it was being divided by 100 it would move left two times and so on and so on
Answer:

Step-by-step explanation:

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F(x,y) =3x + 5y (hope this helps )
Answer: (0,0),(0,9),(9,0)
Multiply each column by 3 to find 3T of Matrix.