9. Four teachers shared a 20-meter roll of plastic for their posters. One of them used 4.3 meters, the second teacher used 5.15 meters, the third teacher used 4.8 meters, and the last teacher used 5.25 meters. How many meters of plastic were left? A1.5 B.0.25 C.0.75 D.______
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Answer:
0.5
Step-by-step explanation:
20.0-4.3=15.7
15.7-5.15=10.55
10.55-4.8=5.75
5.75-5.25=0.5