Answer:
-24
Step-by-step explanation:
goes by -5
![\bf \sqrt{\sqrt{x-5}+x}=5\leftarrow \textit{squaring both sides} \\\\ \sqrt{x-5}+x=25\implies \sqrt{x-5}=25-x\leftarrow \textit{squaring both sides} \\\\ x-5=(25-x)^2\implies x-5=625-50x+x^2 \\\\ 0=x^2-51x+630\implies 0=(x-30)(x-21)](https://tex.z-dn.net/?f=%5Cbf%20%5Csqrt%7B%5Csqrt%7Bx-5%7D%2Bx%7D%3D5%5Cleftarrow%20%5Ctextit%7Bsquaring%20both%20sides%7D%0A%5C%5C%5C%5C%0A%5Csqrt%7Bx-5%7D%2Bx%3D25%5Cimplies%20%5Csqrt%7Bx-5%7D%3D25-x%5Cleftarrow%20%5Ctextit%7Bsquaring%20both%20sides%7D%0A%5C%5C%5C%5C%0Ax-5%3D%2825-x%29%5E2%5Cimplies%20x-5%3D625-50x%2Bx%5E2%0A%5C%5C%5C%5C%0A0%3Dx%5E2-51x%2B630%5Cimplies%200%3D%28x-30%29%28x-21%29)
and surely you'd know what the roots are
If you look on the water bottle paper (It depends) you will find that it holds one of the amounts from 16.9<span> to 20 oz.
Hoped I helped!</span>
Just plug in 500 for p, 0.2 for r (because 20% is equivalent to 0.20), and 2 for t:
![I=p+prt\\I=(500)+(500)(0.2)(2)\\I=500+200\\I=700](https://tex.z-dn.net/?f=I%3Dp%2Bprt%5C%5CI%3D%28500%29%2B%28500%29%280.2%29%282%29%5C%5CI%3D500%2B200%5C%5CI%3D700)
So, if you start with $500 and charge an interest rate of 20% for 2 years, you will gain $200 to get $700 in total.