Awall has been built with two pieces of sheetrock, a smaller one and a larger one. the length of the smaller one is stored in the variable small. similarly, the length of the larger one is stored in the variable large. write a single expression whose value is the length of this wall.

The answer is: small+large.

Step-by-step explanation:

If the variable of the smaller sheetrock is stored in small:

var small.

And the variable of the larger sheetrock is stored in large:

var large.

The length of the wall will be the sum of the two pieces of sheetrock:

For example:

var small = 5;

var large = 10;

small+large = 5 + 10 = 15 is the length of the wall.