Find the intensity I of an earthquake measuring R on the Richter scale 
.
?
Costa Rica in 2009, 
?
A. 
B. 
C. 
D. 
E. 
Answer: B
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Divide. Leave your answer in exponent form. Assume that all variables in any denominator are nonzero.
A. 
B. 
C. 8x4y3
D. 
Evaluate the expression.
A. 0
B. 
C. 8
D. 1
Which of the following best exemplifies conceptual knowledge related to fractions?
a. Knowing that the top portion of a fraction is called the "numerator" and the bottom portion is called the "denominator" b. Knowing how to execute the "invert and multiply" rule for dividing fractions. c. Being able to carry out long division to turn a fraction into a decimal. d. Understanding that fractions, decimals, and percents can, at times, be used interchangeably.
Find the remaining sides of a 30-60-90 triangle from the given information.The length opposite the 60° angle is 2.
A. 
; 4
B. 
; 
C. 
; 
D. 
; 4