Two-Variable Data: Models and Scatterplots

SAT Math· difficulty 5/5

A substance's mass halves every 4 years. Starting at 80 grams, what is the mass after 12 years?

A
$5 g$
B
$40 g$
C
$20 g$
D
$10 g$
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Explanation

80 \times (1/2)^3 = 80/8 = 10

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