an antibiotic kills 60% of bacteria in a sample of 100,000 each day. the equation $p_1 = 100,000(0.4)^d$…

an antibiotic kills 60% of bacteria in a sample of 100,000 each day. the equation $p_1 = 100,000(0.4)^d$ represents the population, $p_1$, after $d$ days. four days after introducing the antibiotic to the first sample, a scientist introduces the same antibiotic to a second population, $p_2$. the number of bacteria after $d$ days in the second population is represented by the equation $p_2 = 100,000(0.4)^{d - 4}$. which equation is equivalent to $p_2$?\n$p_2 = 2,560(0.4)^d$\n$p_2 = 99,744(0.4)^d$\n$p_2 = 100,256(0.4)^d$\n$p_2 = 3,906,250(0.4)^d$

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