Answer:
8/12 ;; 66%
Step-by-step explanation:
If you have 4 questions, with each having 3 answers, then you have 12 options (the denominator). If one is correct for each answer, then the correct is 4/12. Then you have to find the remaining part to see what is wrong.
U = -5
-8u = -7u + 5
-u = 5
u = -5
the new scale is the same length as the original scale
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