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
Answer: C
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Find the solution set for each inequality. Graph the solution set on a number line and write it in interval notation.|x| - 9 ? -6
A. (-?, -15]
B. [-3, 3]
C. (-?, -3] ? [3, ?)
D. (-?, 3]
Solve.A faucet is used to add water to a large bottle that already contained some water. After it has been filling for 5 seconds, the gauge on the bottle indicates that it contains 25 ounces of water. After it has been filling for 12 seconds, the gauge indicates the bottle contains 53 ounces of water. Let y be the amount of water in the bottle x seconds after the faucet was turned on. Write a linear equation that models the amount of water in the bottle in terms of x.
A. y = 
x + 
B. y = -4x + 45
C. y = 4x + 5
D. y = 4x + 41
Determine whether the expression is a polynomial. If it is a polynomial, give its degree.-4y4 - 
A. polynomial; degree -4 B. not a polynomial C. polynomial; degree 3 D. polynomial; degree 4
Evaluate. (-4)3
A. -12 B. -64 C. 64 D. -1