Divide each cost over the number of bottles
For the 6-pack, we have
3.79 dollars divided by 6 = 3.79/6 = 0.6317 which rounds to 0.63
So we pay $0.63 per bottle or 63 cents per bottle
-------------------------------------
For the 9-pack, we have
4.50 dollars divided by 9 = 4.50/9 = 0.50
meaning we pay $0.50 per bottle or 50 cents per bottle
-------------------------------------
For the 12-pack, we have
6.89 dollars divided by 12 = 6.89/12 = 0.57416 which rounds to 0.57
So we pay $0.57 per bottle or 57 cents per bottle
-------------------------------------
In summary we have
The 6-pack costing 63 cents per bottle
The 9-pack costing 50 cents per bottle
The 12-pack costing 57 cents per bottle
The lowest per bottle cost is 50 cents per bottle, which is for the 9-pack
The 9-pack is the best deal of the three deals.
Answer:
60? I'm really not sure mate, i'm really sorry if it's wrong.
Step-by-step explanation:
4+8+(5X7)+5(7-9)=6+B
USE PEMDAS
5X7=35
4+8+35+5(7-9)=6+B
(7-9)=-2
4+8+35+5(-2)=6+B
5X-2=-10
4+8+35+-10=6+B
4+8+35+-10=37
minus both sides by 6
37-6=31
6+B-6=B
31=B or B=31
I don't really get the question but if you mean 11x-14 it's 52