Evaluate the expression using order of operations.8[-2 + 5(-7 + (-8))]
A. -360
B. -91
C. -364
D. -616
Answer: D
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Solve the problem by integration.Find the area bounded by the x-axis and the curve y = 
between the x values of 0.7 and 3.
A. 4
B. 
C. 4
D. 4ecot-13
Solve the problem.At a plant that packages bottled spring water, the water is passed through a sequence of ion-exchange filters to reduce the sodium content prior to bottling. Each filter removes 73% of the sodium present in the water passing through it. Determine the number of filters that must be used to reduce the sodium concentration from 21 parts-per-million to 1.69 parts-per-million.
A. 10 filters B. 11 filters C. 8 filters D. 9 filters
Find the perimeter.
A. 82 m B. 164 m C. 115 m D. 131 m
Use a spherical coordinate integral to find the volume of the given solid.The solid enclosed by the cardioid of revolution 
A. 
?
B. 
?
C. 
?
D. 
?