Answer:
Roja: calcetín azul calcetín: amarillo
Hi,
We know that:
a² -- b² = (a -- b)(a + b).
With a = x, and b = 4, we have:
x² -- 16 = x² -- 4² = (x -- 4)(x + 4).
As simple as that. Have you understood ?
Green eyes.
Answer: The value of X is 4 *cough*Bfb reference*cough*
The answer is 140, you just add them up and it goes by 2.
Answer: The number of stickers she used to cover the length of the spine = 14.
Step-by-step explanation:
Given: The length of spine =
inches =
inches
Length of each sticker =
inch
If she laid the stickers side by side without gaps or overlaps, the number of stickers she use to cover the length of the spine = 

The number of stickers she used to cover the length of the spine = 14.