The perimeter formula for a rectangle is 21+ 2w, where l is the length and w is the width
(8x - 1) in
(2x + 4) in

20x+6

Step-by-step explanation:

The perimeter is

P= 2l + 2w

P = 2( 8x-1) + 2(2x+4)

Distribute

   = 16x-2 + 4x+8

Combine like terms

  = 20x+6

Perimeter = 20 x + 6

Step-by-step explanation:

The Perimeter of rectangle = 2l + 2w

Where,

Perimeter of rectangle = 2(8x -1)+ 2(2x + 4)

using Distributive property

Perimeter = 16 x - 2 + 4x + 8

Combine like terms

Perimeter = 16 x + 4x - 2 + 8

Perimeter = 20 x + 6

step-by-step explanation:

a and d

its 60

4 x 12 = 48

3 x 4 = 12

48 + 12 = 60

yeeeet