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The left sides of the equations are the same and the right sides of the equations are different, therefore the system of equations is inconsistent.
Answer: B. inconsistent.
The answer is D. For Mrs Yadira's class there are 11s 4c and 489 in total.
Make the denominators equal
4 9/12 + 2 10/12
Add the fractions
6 19/12
Simplify
7 7/12
It would be D.
Because the slope is the same but the yint is different