After beginning antiseptic treatment, the number of bacteria in a population decreases at a rate of 40% per day, that is, dN/dt=-0.40N, After beginning antiseptic treatment, the number of bacteria in a population decreases at a rate of 40% per day, that is,
a) When t = 0 , there are 5,000,000 bacteria present. Find a function that satisfies this equation.
(b) How many bacteria will remain after 3 days?
(c) After how long do half of the original bacteria remain?
(a) N (t) = 
(b) 1,505,971
(c) 1.73 days
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Solve the equation.5x2 - 13x = 0
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C. {0}
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Use the order of operations to simplify the expression.
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Suppose that the average adult in the United States will work x number of days (rounded to the nearest day) to earn enough to pay for all of the household's leisure activities in that year. This number can be calculated by multiplying the average percent of household income spent on leisure activities by 365 (the number of days in a year). The bar graph shows the percent of income spent in various countries of the world. Use the graph to answer the question.
In which country is the lowest percent of income spent on leisure activities? What percent is this?
A. Australia; 7.3% B. China; 94.6% C. China; 5.4% D. USA; 72.7%