Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real numbers.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem.When the temperature is 39°F, what is the temperature in degrees Celsius? Round your answer to the nearest tenth if necessary.
A. 102.2°C B. 3.9°C C. 38.2°C D. 10.3°C
Mathematics
Tell whether the statement is true or false.{54, 55, 54, 55} = {54, 55}
A. True B. False
Mathematics
Translate into an equation, then solve.A weatherman reports that since 6:00 am this morning the temperature has dropped by 
to the current temperature of 
What was the temperature at 6:00 am ?
A. x - 21 = -10; x = -11°F B. x + 21 = -10; x = -11°F C. x - 21 = -10; x = 11°F D. x + 21 = -10; x = 11°F
Mathematics
Evaluate the expression.7 + 
A. 
B. 
C. 
D. 
Mathematics