Please Help! I don’t understand this.

Shampoo number one has a lower unit rate

It is lower by 10 cents

Step-by-step 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!