Solve.x2 - 4 = 0
A. -2, 2
B. -2
C. 2
D. -1, 4
Answer: A
Mathematics
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Multiply and simplify.
? 
A. 1
B. 
C. -1
D. 0
Mathematics
Scores in golf can be 0 (also called par), a positive integer (also called above par) or a negative integer (also called below par). Below are the scores of some members of a college golf team in a recent tournament. 
Find the average of the scores of the members shown.
A. -1 B. 2 C. 0 D. 1
Mathematics
Let Q represent a mass of radioactive plutonium 
(in grams), whose half life is 24,100 years. The quantity of plutonium present after t years is 
Determine the quantity present after 67,000 years. Round your answer to one decimal place.
a. 4.3 g b. 3.3 g c. 5.3 g d. 2.3 g
Mathematics
Solve the equation.4(x + 5) = 5(x - 5)
A. {45} B. {-5} C. {-45} D. {5}
Mathematics