Answer:
i dont know sorry.
Step-by-step explanation:
Do it yourself ;)
When waves travel from one medium to another the frequency never changes. As waves travel into the denser medium, they slow down and wavelength decreases. Part of the wave travels faster for longer causing the wave to turn. The wave is slower but the wavelength is shorter meaning frequency remains the same
Answer:
$295,245
Step-by-step explanation:
Each year the value is 0.9 times what it was the year before. After 5 years, the value is ...
$500,000 × 0.9^5 = $295,245
For a single cake: c pounds.
for 20 cakes: t poucnds.
Thus, 20c=t
t=20c
I think it's 10. Hope it helps. Like I am saying I am not 100% sure it is but I still hope it helps