Answer:

Step-by-step explanation:
Given data
Number of balls= 480
we are told that 50%(half) of the balls are put back every 1
let the number of hours be x
and let the remaining ball be y after x hours
Hence the expression is given as

I am not 100% sure but I believe its,
(0,2)
Ball thrown from an initial height of two feet
Jeremy's change jar that started with a $2 deposit
I chose these because the Y always represents the starting point of whatever the problem is about, then the X represents the progress its made since the beginning. So if it doesn't say start or initial or any words like that its probably not the Y, its the X.
Answer:
The value of
.
Step-by-step explanation:
Given:

We need to solve this equation.
Solution:
First combining equation having same denominators we get;

Now denominators are common so we will solve the numerators we get;

Now by cross multiplication we get;

Now Applying distributive property we get;

Now Combining the like terms we get;

Hence on solving we get the value of
.
The right chose is -9x+3= the others are not hope this helped