Answer: a b d
Explanation:
Answer:c
Explanation: correct on unit test
Answer:
C!
see below
B) 110 dB because 100/10 = 10, 120-10 = 110
Falling leaves = 20dB
1000/10 = 100
100+20 = 120dB
1000000/10 = 100000
100000+20 = 100020 dB