Hi there! $8 per 4 bottles means price/# of bottles will give you the average price per bottle.
8/4=$2
Therefore it is $2 for 1 bottle.
Hope this helps!
The answer is 23 because you would substitute in the 4 for the X and multiply 5 times 4 = 20 then add 20 plus 3 and you get 23
Answer:
10 x 10 x 10 x 10 x 10, 20 x 20 x 10, 30 x 20
