Find the root.
A. 6
B. -6
C. Not real number
D. 36
Answer: C
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Solve the problem.On a biology test, a student got 25 questions correct but did not pass. On a second attempt, the student got 30 questions correct. What was the percent of increase?
A. 80% B. 20% C. 16.7% D. 5%
Is the function graphed below one-to-one?
A. No B. Yes
Multiply. Express the product in lowest terms.
? 
A. 
B. 
C. 
D. 
Solve the problem.Ken is 6 feet tall and is walking away from a streetlight. The streetlight has its light bulb 14 feet above the ground, and Ken is walking at the rate of 3 feet per second. Find a function, d(t), which gives the distance Ken is from the streetlight in terms of time. Find a function, 
, which gives the length of Ken's shadow in terms of d. Then find 
.
A. (S ? d)(t) = 2.85t B. (S ? d)(t) = 2.25t C. (S ? d)(t) = 1.65t D. (S ? d)(t) = 5.07t