Solve the problem.The charcoal from a tree killed in a volcanic eruption contained 61.2% of the 
found in living matter. How old is the tree, to the nearest year? Use 
for the half-life of 
A. 2,799 years
B. 1,940 years
C. 5700 years
D. 4,038 years
Answer: D
Mathematics
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Factor the four-term polynomial by grouping.7x - 63 + xy - 9y
A. (y - 9)(7x + y) B. (x - 9y)(7 + y) C. (x - 9)(7 + y) D. (y - 9)(x + 7)
Mathematics
Decide whether the composite functions, f ? g and g ? f, are equal to x.f(x) = 9x, g(x) = 
A. Yes, yes B. No, no C. No, yes D. Yes, no
Mathematics
Write the words for the dollar amount as you would on a check.$45.33
A. Forty-five dollars and 
B. Forty-five and 
dollars
C. Forty-five 
dollars
D. Forty-five dollars and 33 cents
Mathematics
Identify the terms in the polynomial.3a5 - 5x4 + 5
A. 3a5, -5x4, 5 B. 3, a5, -5, x4, 5 C. 3a5, -5x4, 5x D. 3a5, 5x4, 5
Mathematics