algebra
posted by lee .
For problems 13 and 14, assign each letter and a blank space to a number as shown by the alphabet table below.
Use the code [1,2_3,7] encode the phrase "ONE QUESTION TO GO"
The matrix C=[1,2_3,7] was used to encode a phrase to [7,28,25,35,2_21,107,90,123,17] find C1 and use it to decode the matrix.
If someone could explain the steps or get me in the right direction.
Use encode the phrase “ONE QUESTION TO GO.” (3 points)The matrix was used to encode a phrase to. Find C–1 and use it to decode the matrix

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