Answer:
3/5
Step-by-step explanation:
density= mass/volume
mass= densiy x volume
mass= 6.3 g/mm^3 x 30mm^3= 189 g
4: 19
5: 20
6: 21
So it says to use the equation t=q+15, so 4+15 is 19, 5+15=20, 6+15=21
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