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Number 8,9,10. help me please

Number 8,9,10. help me please-example-1
User Joanne C
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8.) (10 / 5) × 100% = 200%

9.) 40 x 100 / 60 = 66.666666666667

10.) 9% × 80 = (9/100) × 80 = 7.2
User Zaptree
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