Let x be the unknown number
x×55%=121
x=121÷55%
x=220
So 121 is 55% of 220
Let
x-----> the purchase price of the house
we know that
1) Marika paid 
of the purchase price of the house with a loan
2) Marika paid the remaining 
of the purchase price with her savings
3) represent the 
of the purchase price
so
Solve for x
Divide by 
both sides
therefore
<u>the answer is</u>
the purchase price of the house is 
step-by-step explanation: the increase = 204 - 120
increase = 84
percent increase = 84/120
percent increase = 70% so of course the percentage is 70% ( I hope this helps you )
You gave us the speed and the frequency, and you need the wavelength.
You were also nice enough to remind us that (fqy)x(lng) = speed.
So . . . F x W = 343 m/s
Divide each side by F :
W = (343 m/s) / F
W = (343 m/s) / (240 / s)
W = (343/240) m
<em>W = 1.429 meters</em>
