1) your roi or rate of return is 4%?

years.

2) your roi is 10%?

years.

3) your roi is 13%?

years.

submit

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

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