B. To pack and store your model rocket, you need to find its volume in liters. You determine that your rocket can fit in a box that is 22 x
22 x 56 inches, which has a volume of 27,104 cubic inches. You use
a conversion calculator to find that this box can hold 117.33
gallons. But now you must convert the gallons to liters. Write the
correct conversion factor and find the volume of this box in liters.
(Hint: 1 gallon = 3.8 liters)

For cyclohexane compounds drawn in a chair conformation:   -axial bonds are vertical  -equatorial bonds are parallel to two bonds within the ring.  thus, as i assume the chair conformation is drawn:   -the x group is in an axial position, as are the five other vertical bonds.  -three axial bonds are on the top face of the ring  -the other three axial bonds are on the bottom face  the position of the second substituent on each ring carbon is equatorial.  gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other.  drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1.  click this link and watch some academic videos that may you more understand the topic 

Ithink the answer is b.