A.rolling a number cube labeled 1 to 6, and landing on a 2 or 4
Step-by-step explanation:
we have 8 equally "heavy" batches.
one weighs 3.9 × 10^-10 g
so, the total sample then weighed
8 × 3.9 × 10^-10 = 31.2 × 10^-10 = 3.12 × 10^-9 g
Answer:
33.333
Step-by-step explanation:
This was the answer I came up with - 3.5
