To start a mobile dog-grooming service, a woman borrowed $2,400. If the loan was for 2 years and the amount of interest was $120, what simple interest rate was she charged?
?
A. 2.1%
B. 2.5%
C. 2.8%
D. 2.3%
E. 2.4%
Answer: B
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Match the differential equation with the appropriate slope field.y' = x - y
A. 
B. 
C. 
D. 
Answer the question. Give your answer in simplest form.A teacher bought a package of 48 markers for her first-grade class. After one school year, 5 markers were still working. What fraction of the package of markers was working? Express the result using a simple, convenient fraction that is close in value to the exact answer.
A. 
B. 
C. 
D. 
Solve.The distance that an object falls when it is dropped is directly proportional to the square of the amount of time since it was dropped. An object falls 156.8 meters in 4 seconds. Find the distance the object falls in 5 seconds.
A. 245 meters B. 49 meters C. 20 meters D. 196 meters
Factor the expression completely.7x2 + 68x + 45
A. (x + 5)(x + 9) B. (x - 36)(x + 9) C. (7x + 5)(x + 9) D. (7x - 36)(x + 9)