would the top two answers i have be correct considering the graph is in ms?also, can you still solve the other problems on the page just so i know what i'm doing

Problem 2) For the oscillation on the right, find the period T in 10 seconds and in milliseconds: T = 4.10 3 S= 4 ms. Find the frequency of the amplitude (cm) oscillation in Hz and in kHz: f = Hz = -5 KHz. What is the amplitude of the oscillation? Be sure to include -10 the units. 0 5 10 15 20 time (ms) Amplitude =