Simplify by first removing the parentheses and then combining the like terms.
A. 5x + 12.8
B. 3.2x - 12.8
C. 5x - 12.8
D. 3.2x - 5
E. 3.2x - 1.4
Answer: C
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Find the area of the specified region.Inside the circle r = -4 cos ? and outside the circle r = 2
A. 
(4? - 3
)
B. 
?
C. 
(2? + 3
)
D. 2?
Solve the problem.The results of a medical test show that of 75 people selected at random who were given the test, 3 tested positive and 72 tested negative. Determine the odds in favor of a person selected at random testing positive on the test.
A. 1 : 25 B. 25 : 1 C. 24 : 1 D. 1 : 24
Solve.Find the discount when the original price is $67.00 at a discount of 
.
A. $10.05 B. $66.00 C. $56.95 D. $1.01
Simplify the expression. Write your answer without negative exponents. Whenever an exponent is negative or zero, assume that the base is not zero.
-3
A. - 
B. - 
C. 
D. 