Answer:
D=1.22g/cubic cm
Step-by-step explanation:
D=M/V
Answer: 93
67.50 + 12.50 = 80
80/100 = 0,8 x 3 = 2.4
so, the total bill was 80 + 2.4 = 82.4
<em>hope it helps :)</em>
ummmmm
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