The Answer should be Circle , Square
Yesterday's price of notebook = $3.45
Today's price of notebook = $3.20
We have to determine the percentage decrease in the cost of notebook.
Percentage decrease = (Decrease
Old price) 
So, percentage decrease = 
=
= 7.246%
= 7.25%
Therefore, there is 7.25% of decrease in the cost of the notebook.
This will only have one solution because it does not deal with a quadratic. Then to isolate x you need to get the similar terms on different sides by subtracting or adding, Then divide both sides by the number next to x (coefficient).
Answer:
yo need to do a grafic you need tu pud x and y en the grafic
300*.4=120
300-120=180
there are 120 yellow balls and 180 white balls.
120*.2=24
180*.8=144
sallys team found 168 balls