Divide the number of students that have cellphones by the total number of students:
792 / 1220 = 0.64918
Multiply the decimal by 100:
0.64918 x 100 = 64.918% Round to 64.92%
Answer:
27
Step-by-step explanation:
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answer=2x=12,x=6
2z+4=0,z=-2