Which expression represents the volume of the pyramid?
The base of a solid right pyramid is a square with an edge
length of n units. The height of the pyramid is n - 1 units.
znan – 1) units
Inn - 112 units
2n(n-1) units
nin - 1) units

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

2 apples

step-by-step explanation:

taking away equals subtraction. 6-4=2

answer is b 270°

i got it down for you chief.