Subtract the fractions. Write the answer in lowest terms.
- 
A. 
B. 
C. 
D. 
Answer: B
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The length L, in centimeters, of a certain type of snake is a function of the age t in years. The relationship is
?
.
What is the longest snake of this variety that can be found?
?
A. 45 centimeters B. 41 centimeters C. 18.56 centimeters D. 53 centimeters
Solve the problem.A local race for charity has taken place since 1993. Using the actual speeds of the winners from 1993 through 1998, mathematicians obtained the formula 
, in which x represents the number of years after 1993 and y represents the winning speed in miles per hour. In what year is the winning speed predicted to be 7.16 mph?
A. 2006 B. 2005 C. 2004 D. 2007
Simplify.
? 
A. 
B. 
C. 
D. 
Simplify the expression. Assume that all variables are positive when they appear.
? 
A. 8 B. -15 C. 15 D. -2