#1
Divide into two rectangles


#2

#3

Answer:
The last one.
Step-by-step explanation:
The formula of the volume of the rectangular prism:
V = length × width × height
We have:
Answer:
x = 54/7 y= -4/7
Step-by-step explanation:
The square root -38 is sqrt(38)i, or approximately 6.2i.