Write the sentence as a proportion. Then determine whether the proportion is true or false.five is to four as nine is to seven
A. 
= 
; true
B. 
= 
; false
C. 
= 
; false
D. 
= 
; true
Answer: B
Mathematics
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Evaluate the limit.
Mathematics
Solve the problem.A reservation clerk worked 19.8 hours one day. She spent twice as much time entering new reservations as she did verifying old ones and one and a half as much time calling to confirm reservations as verifying old ones. How much time did she spend entering new reservations?
A. 17.6 hours B. 4.4 hours C. 8.8 hours D. 6.6 hours
Mathematics
Solve the problem.A weather forecaster predicts that the temperature will drop 5 degrees each hour for the next 7 hours. If the temperature is 18 degrees before the temperature starts falling, what is the temperature after the drop?
A. 6° B. 35° C. -17° D. -35°
Mathematics
Simplify the exponential expression.2-3
A. -8
B. 
C. 8
D. 
Mathematics