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8. Irene's score on Test 1 was 120. Her score on test 2 was 108. What is the percent decrease from Test 1 to Test 2? A. 10% B. 11% C. 12% D. 13%

Sagot :

Test 1 : 120

Test 2 : 108

120 x = 108

x= 108/120

x= 0.9

0.9 x 100 = 90%

100%-90% = 10%

A.10%

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