Answer: is A
Explanation:
how becuase i just take the test
Answer:
Mass = 100g
Volume = 10 cm³
Density = Mass/Volume
= 100/10
= 10 cm-³
30,000,000,000 Hz
I searched it up and got 3 x 10^10 and thats 30000000000
B
i hope this helped!
