Solve the problem.A loaf of bread is removed from an oven at 
and cooled in a room whose temperature is 
. If the bread cools to 
in 20 minutes, how much longer will it take the bread to cool to 
A. 18 min
B. 6 min
C. 26 min
D. 7 min
Answer: B
Mathematics
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Decide whether or not the given equation is an identity.2 cos2 
- 1 = cos ?
A. Yes B. No
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Fill in the blank(s) with the appropriate word(s).
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pounds = ____ ounces
A. 90 B. 170 C. 139 D. 138
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