"This letter" in terms of a written communication, would be "esta carta". If you are speaking in terms of letters of the alphabet, it is "esta letra".
(teh)
In Spanish, Kirby is pronounced as "Ker-bee." The letter "i" in Spanish is pronounced as "ee," and the letter "y" is pronounced as "ee" as well. Therefore, the pronunciation of Kirby in Spanish follows these phonetic rules.
Pencil in spanish is lapiz with an accent on the [second letter].
if you mean how do you say yes in spanish its "si" or if you say the letter "C" in english its the same.
The pronoun I is "yo." The letter I in Spanish has the sound of a long E (ee). So does the letter y, which is the word for "and."
The letter d is spelled the same in Spanish as in English, d.
The letter d is spelled the same in Spanish as in English, d.
carta de credito
Carta de recomendación
You could say "mejor amigo/a".
Equis (pronounced AY-kiss)
De tipo espectrofotofluorométrico. Spelt, just say letter by letter.