Okay add 78 and 66. Then add 96 and 108. It should be 144 by 204. I know math is hard, but when you work at it you can do amazing things! I hope that helps you.
2x3=6x3=18 u always do PEMDAS,
By definition, the density is given by:
Where,
m: mass
V: volume
Clearing the mass we have:
The volume is given by:
Then, we have the following conversion:
Applying the conversion we have:
On the other hand we have the following conversions:
Applying the conversions for the density we have:
Then, the mass of the water is:
Answer:
1190 kilgrams of water are required to fill the waterbed
Given:
The equation is

To find:
The y-intercept (in ordered pair).
Solution:
We have,

Putting x=0, we get



Divide both sides by 4.5.


So, y-intercept is 4.
Therefore, the graph intersect the y-axis at (0,4).