Answer:
That's two half lives. 5/8 * 2 * 2 = 20/8 = 5/2 pounds7/8 * 2 * 2 = 28/8 = 7/2 pounds
Step-by-step explanation:
Brainliest plz?
Step-by-step explanation:
2/7
2×2 = 4
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7×2 = 14
2×3 = 6
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7×3 = 21
2×4 = 8
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7×4 = 12
Step-by-step explanation:
so fill in 88 where the x is so
y = 0.9 (88) - 1
y = 78.2