Solve. Write the answer in simplest form.Sophie read 
of her book on Monday, 
of her book on Tuesday, and 
of her book on Wednesday. What part of her book has she read?
A. 
B. 4
C. 
D. 
Answer: A
Mathematics
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Simplify.
A. 
B. 
C. 
D. None of these
Mathematics
Factor.x2 + 50x + 625
A. (x + 25)2 B. (x - 25)(x + 25) C. (x - 25)2 D. Not possible
Mathematics
Use a calculator to approximate the root to the nearest thousandth.
A. -4.448 B. -4.444 C. -4.457 D. -4.452
Mathematics
During a fermentation experiment, the population P(t ) (in millions per mL) of bacteria Lactobacilli reuteri after t hours in a barley medium satisfied the differential equation 
Initially, 2.1 million bacteria per mL were present.
(a) Determine the number of bacteria per mL after 4 hr. (b) Determine when 7 million bacterial per mL will be present.
Mathematics