Matthew has been observing 10 bacteria in a petri dish for his science class,If the bacteria population doubles every 12 hours, how many bacteria will be in the dish after 2 full days?A. 20 bacteria B. 40 bacteria C. 80 bacteria D. 160 bacteria
The element lawrencium has a half-life of 10 hours. What fraction of 1 ounce of lawrencium will remain after 4 days 4 hours? A.1/50 B.1/60 C.1/512 D.1/1024
Alexandre bought a car for $8,000 in 2005. The value of the car declines at a rate of 7.1% every year Alexandre owns it. If he sells the car in 2009, what will be the approximate value of the car

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2.
so its 1/1024 oz

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