A harpsichord string of length 1.50 m and linear mass density 25.0 mg/m vibrates at a (fundamental)

Question:

A harpsichord string of length 1.50 m and linear mass density 25.0 mg/m vibrates at a (fundamental) frequency of 450.0 Hz.
(a) What is the speed of the transverse string waves?
(b) What is the tension?
(c) What are the wavelength and frequency of the sound wave in air produced by vibration of the string? (The speed of sound in air at room temperature is 340 m/s.)