Convert the units using unit fractions.220 sec = 
min
A. 2200
B. 13,200
C. 3
D. 3
Answer: D
Mathematics
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Use dimensional analysis to answer the question. Last Friday, the temperature was 47°C and today the temperature was 58.1°F. Which day was colder?
A. Today was colder. B. The temperatures were the same. C. Last Friday was colder.
Mathematics
Simplify the expression.
? 
A. y + 7
B. 
C. 
D. 
Mathematics
Find the exact value of the logarithmic expression.log12
A. 
B. 
C. 12
D. 1
Mathematics
Find an exact value.tan 
A. 
B. 2 + 
C. 
D. - 2 - 
Mathematics