Answer:
(a) 480 + 1640
Step-by-step explanation:
I don't really know what (b) is
but hope this helped
Answer:
parallel is 5x + 3y = 13
perpendicular is 6x - 10y = 7
Step-by-step explanation:
For pyramids, the volume is defined by the product of the base area and height divided by 3. Or, V =

Where B = area of the base and h = the height of the pyramid.
For the figure above:
B = 16 in²
h = 6 in

V = 32
2 + 0.06 is the expanded form