Answer:
s=19
Step-by-step explanation:
18s-17s+1=20
s+1=20
s=20-1
s=19
WHATS THE QUESTION i can’t help if there’s no question
20,000 Hz = 2 × 10^4 Hz
150,000 Hz = 1.5 × 10^5 Hz
The intervals along the x axis are inconsistent. the one that says 21-30 should either be split into 2 or have twice the width.
Hope this helps :)