HELP EARTH QUAKE QUESTION !! please help!!! ill give you 5 stars!!?

Question

assume an earthquake wave has a frequency of 2 Hz. Seismic velocities in the rock of your area range from 1000 m/s to
10 000 m/s. construct a graph of wavelength versus seismic velocity for your area, To do this remember
velocity = wavelength x frequency

If a building is safe from earthquake damage ONLY if it is shorter that one-fifth of a wavelength, what is the largest building you can build in the area

PLEASE HELPPP!P!P!P!P!P!P!P!!P!P!PP!!

Answer 1

less than 100m

Answer 2

You can't get stars for answering.

Just graph the data and then read the answer from the chart.