The width of a rectangle measures left bracket, 3, b, plus, 5, right bracket(3b+5) centimeters, and its length measures left bracket, 8, b, plus, 6, right bracket(8b+6) centimeters. Which expression represents the perimeter, in centimeters, of the rectangle?

The perimeter of a rectangle is given by the formula: P = 2(length + width).

The width of the rectangle is (3b+5) cm and the length of the rectangle is (8b+6) cm.

Therefore, the perimeter of the rectangle is:
P = 2[(8b+6) + (3b+5)]
P = 2[11b + 11]
P = 22b + 22

So, the expression that represents the perimeter, in centimeters, of the rectangle is 22b + 22. Answer: \boxed{22b+22}.

The perimeter of a rectangle is calculated by adding the lengths of all four sides.

The length of the rectangle is given as (8b + 6) centimeters, and the width of the rectangle is given as (3b + 5) centimeters.

To find the perimeter, we need to add the length of each side:

1. The top side has length (8b + 6) centimeters.
2. The bottom side has length (8b + 6) centimeters.
3. The left side has length (3b + 5) centimeters.
4. The right side has length (3b + 5) centimeters.

So, the expression that represents the perimeter of the rectangle is:
(8b + 6) + (8b + 6) + (3b + 5) + (3b + 5)

Simplifying this expression by combining like terms, we get:
8b + 6 + 8b + 6 + 3b + 5 + 3b + 5

Combining like terms, we have:
22b + 22 + 8

Simplifying further, the expression that represents the perimeter of the rectangle is:
22b + 30 centimeters.

To find the perimeter of a rectangle, we need to add up the lengths of all four sides.

The width of the rectangle is given as (3b + 5) centimeters, and the length is given as (8b + 6) centimeters.

The perimeter is the sum of the lengths of all sides, which can be written as:

Perimeter = width + width + length + length

Substituting the given expressions for width and length, we have:

Perimeter = (3b + 5) + (3b + 5) + (8b + 6) + (8b + 6)

Now, let's simplify the expression:

Perimeter = 3b + 5 + 3b + 5 + 8b + 6 + 8b + 6

Combining like terms:

Perimeter = (3b + 3b + 8b + 8b) + (5 + 5 + 6 + 6)

Simplifying further:

Perimeter = 22b + 22

Therefore, the expression representing the perimeter of the rectangle is 22b + 22 centimeters.