Given:
The expression is:

To find:
The terms and like terms in the expression.
Solution:
Terms: Variables, constants and product of variable and constants are known as terms which are separated by addition sign "+".
Like terms: The terms which contain same variables with same power are known as like terms.
The given expression is:

It can be rewritten as:

Terms are
.
Like terms are
and
and
.
First we will see how many quarts are in a gallon.
1 gallon = 4 quarts.
Now lets MULTIPLY to get our answer.
5 gallon = ? quarts
5 × 4 = 20
So, the cooler has 20 quarts or 5 gallons.
Hope I helped ya!!!!!!!
67-27= 40
40 x 2= 80
just reverse the steps