Simplify.
A. 
B. 
C. 
D. 
Answer: C
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Use the graph to find a ? > 0 such that for all x, 0 < 
< ? ? 
< ?.
A. 9 B. 0.2 C. -0.1 D. 0.1
Write the negation of the proposition.Everyone is asleep.
A. Not everyone is asleep. B. Nobody is awake. C. Everyone is awake. D. Nobody is asleep.
Solve the problem.The charcoal from a tree killed in a volcanic eruption contained 68.5% of the 
found in living matter. How old is the tree, to the nearest year? Use 
for the half-life of 
A. 5700 years B. 1495 years C. 3111 years D. 2157 years
Solve the problem.A cable TV company charges $24 for the basic service plus $8 for each movie channel. Let y be the total cost in dollars of subscribing to cable TV, using x movie channels. Find the slope-intercept form of the equation.
A. y = 24x - 8 B. y = 8x - 24 C. y = 8x + 24 D. y = 24x + 8