Can anyone help with these two? Thank you!

1) In the picture below, a standing wave is formed on an oscillating string. -Which harmonic is this/ in the picture? -Assume the string in the picture is 2m long, what is the wavelength of this wave? -This standing wave happens at a frequency of 27Hz. At which frequency would you expect to find the next higher harmonic? 2) A string is 9.0cm long and is fixed at both ends. With a frequency of 0.25 Hz, a standing wave is formed (which is shown in the picture below). -What is the wavelength of this wave? -What is the speed of the traveling waves that produce this standing wave? \"Slaw? rm :! Slum]