Complete the magic (addition) square.Use each number 15, 16, 17, 18, 19, 20, 21, 22, and 23 once.
A. 
B. 
C. 
D. 
Answer: A
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Multiply or divide (as specified) the numerator and denominator by the given factor to obtain an equivalent fraction.
(divide by 2)
A. 
B. 
C. 
D. 
Solve the problem.The equation that represents the proper traffic control and emergency vehicle response availability in a small city is src="https://sciemce.com/media/4/ppg__tttt0518191235__f1q66g3.jpg" alt="" style="vertical-align: -4.0px;" /> and 
where P is the number of police cars on active duty and F is the number of fire trucks that have left the firehouse in response to a call. In order to comply with staffing limitations, the equation 
is appropriate. The number of police cars on active duty and the number of fire trucks that have left the firehouse in response to a call cannot be negative, so 
Graph the regions satisfying all the availability and staffing requirements, using the horizontal axis for P and the vertical axis for F. If 5 police cars are on active duty and 5 fire trucks have left the firehouse in response to a call, are all of the requirements satisfied?
A. No
B. Yes
C. No
D. Yes
Select from the list of numbers all that belong to the specified set.Real numbers4, 
, -2, 0, 
, 
, 
A. 4, -2, 0, 
B. 4, -2, 0, 
, 
C. 4, -2, 0, 
, 
D. 4, 
, -2, 0, 
, 
Simplify the expression.32.6 - 4.9 ÷ 5.7 × 31.1 Round to the nearest hundredth if necessary.
A. 5.86 B. 0.16 C. 151.14 D. 987.12