Answer:
20
Explanation:
the answer on your question will be 20.
It good to stop every 100 miles or every 2 hours to take a break
I would look back on your notes if I were you. I bet the answer is in there :)
If wavelengths of light
from a definite region of the spectrum are engrossed by a material, then the
materials will appear to be the complementary color. If violet light with
wavelength of 400nm is immersed, the material will look yellow. If the material
engrosses blue you will perceive the color orange.