Answer:
Shampoo number one has a lower unit rate
It is lower by 10 cents
Explanation:
To find the unit rate for bottle one do 6/8 which is 0.75 so for bottle one, one ounce of shampoo cost 75cents
For shampoo two do 4/5 = 0.8 so for every one ounce it costs 80 cents
So shampoo number one has a lower unit rate
and it is 80-70= 10 cents lower
Hope this helps!