Answer:
9
Step-by-step explanation:
7+2=9 goofy
The answer would be 7+5/6b
A unit rate is just how much it costs per ONE unit of whatever your measuring. Lets say you had a rate of $4.00/8lbs. The unit rate would be $0.50/ ONE lb.
Fraction of shampoo left = 
Solution:
Given fraction of full shampoo
.
Fraction of shampoo Margaret used 
Fraction of shampoo left = Full shampoo – fraction of shampoo used

To make the denominators same do cross multiplication.




Hence
of the shampoo bottle is left.