If a supermarket has eggs on sale for $1.80 per dozen. What would be the cost of each
egg?

$0.15

Step-by-step explanation:

If the ratio of price is 1.80 per a dozen eggs, then you can set up the following ratio. 1.80:12=x:1, x=1.80/12=0.15. Hope this helps!

step-by-step explanation:

their are no angles. sorry cant .

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