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Sarah's expenses are 2130/3120×100% = 68.3% of her income.
The amount left over is 100% - 68.3% = 31.7%
Answer:
w = -10,6
Step-by-step explanation:
w(4+w)=60
4w + w^2 -60 = 0
w^2 +4w -60 = 0
w^2 +10w -6w -60 = 0
w(w+10) -6(w+10) = 0
w = -10, 6
50% of 28 is 14 so 28+14= 42
Answer:
62,100
Step-by-step explanation: