Formula of simple interest rate: I=PxRxT
I=52$
P=400$
R=?
T=1 year
I=PxRxT
I/P/T=R
52/400/1=R
13%=R
The interest rate was 13% per year.
The hydrosphere includes water that is on the surface of the planet, underground, and in the air. A planet's hydrosphere can be liquid, vapor, or ice. On Earth, liquid water exists on the surface in the form of oceans, lakes and rivers. It also exists below ground as groundwater, in wells and aquifers.
The answer is 2x-5 (I hope that's what you meant)
The answer is 270 found out by google calculator.
Answer: Posted in the picture
Step-by-step explanation: -2/5 is to the left since it is the x axis
and -3 is down since it is the y axis, so the answer is the black dot, on the left of the -3.
Hope this helps
And I hope I am right