Solve the problem.A bike road race starts at an elevation of 520 feet and passes through 
where the elevation increases (or decreases) by -69 feet, -524 feet, 357 feet, 269 feet, and -169 feet. At what elevation does the race end?
A. 1213 feet
B. -1908 feet
C. 1908 feet
D. 384 feet
Answer: D
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Fill in the blank with the correct inequality symbol.If 4x > - 20, then x _____ -5.
A. < B. ? C. ? D. >
The educational attainment of a country population age 25 years or older in 2007 is shown in the circle graph. Use the fact that the population of people 25 years or older was approximately 6.3 million in 2007 and let 
, 
variablename="impvar_e2a661a9bcdd4c40bad229af9" />, 
and 
. Find the probability that a person 25 years or older selected at random has earned a Bachelor's degree or higher.
?
?
A. 3.321
B. 2.321
C. 4.321
D. 0.321
E. 1.321
Solve the problem.A certain drug is introduced into a person's bloodstream. Suppose that the rate of decrease of the concentration of the drug in the blood is directly proportional to the product of two quantities: (a) the amount of time elapsed since the drug was introduced, and (b) the square of the concentration. Let y = f(t) denote the concentration of the drug in the blood at time t. Set up a differential equation satisfied by f(t). Does the following accurately describe this situation: 
Enter "yes" or "no".
Fill in the blank(s) with the appropriate word(s).
Find and simplify the difference quotient of f, 
, for the function.f(x) = 3x + 5
A. 3
B. 3 + 
C. 3 + 
D. 0