Find the exact value of the expression or state that it does not exist.cos
A. 
B. - 
C. 
D. - 
Answer: A
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Perform the indicated subtraction.7 - (-7)
A. 0 B. 14 C. -14 D. 1
Use the theoretical probability formula to solve the problem. Express the probability as a fraction reduced to lowest terms.Use the spinner below to answer the question. Assume that it is equally probable that the pointer will land on any one of the five numbered spaces. If the pointer lands on a borderline, spin again. Find the probability that the arrow will land on 2 or 3. 
A. 2
B. 1
C. 
D. 
Find price relatives for the item. Round to the nearest tenth of a percent.Item: NewspaperPrice then: $0.12 per paperPrice now: $0.27 per paper
A. 222.8% B. 236.3% C. 225.0% D. 44.4%
Simplify the expression. Assume that all variables are positive when they appear.-2
- 7
A. -9
B. -23
C. 23
D. -19