A bowling ball.
definition of dense-closely compacted in substance
B. carbon because it's atomic number is 6
6.4*10^10 is the answer in scientific notation
Answer:

Explanation:
You can put that equation into a program like desmos on your browser and take a screenshot or use windows snippet tool.
Equation of a Wave: y = Acos(((2*pi)/B)x)
or

A = Amplitude
B= Wavelength