What is the value of k?

Please explain your answer

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

Michael split a rope that was 28 inches long into 5 equal parts. brenden split a rope that was 30 inches long into 6 equal parts. which boy's rope was cut into longer pieces?

Who was the first president of the united states