Solve the problem. Write ratios in simplest form.Bob is 15 years old, and Susan is 20 years old. Find the ratio of his age to hers.
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.Write an iterated triple integral in the order 
for the volume of the region in the first octant enclosed by the cylinder 
and the plane 
.
A. 
B. 
C. 
D. 
Find the triple scalar product (u x v) ? w of the given vectors.u = -5i - 3j + 4k; v = 4i - 8j + 8k; w = 6i - 10j - 7k
A. -1092 B. 28 C. -420 D. -876
The following system does not have a unique solution. Solve the system.
A. infinitely many solutions of the form x = 20 - 
z, y = 3 - 
z, z = z
B. infinitely many solutions of the form x = 20 + 
z, y = -3 - 
z, z = z
C. infinitely many solutions of the form x = 20 + 
z, y = 3 - 
z, z = z
D. infinitely many solutions of the form x = 20 + 
z, y = 3 + 
z, z = z
Find the following root if it exists.± 
A. ± 324 B. - 162 C. 36 D. ± 18