Answer:
the slope of line a is 3 and the slope of line b is -1. the slope of line a is greater than the slope of line b
The answer is D (the fourth option), during EVAPORATION
Answer:

The graph in the attached figure
Step-by-step explanation:
Let
x-----> the number of pints
y----> the number of servings
For x=3 pints, y=2 servings
This is a proportional variation
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form
or 
so
The linear equation is equal to

The graph in the attached figure
Answer:
B. Three bags
Step-by-step explanation:
For this problem you want to first find the area of the triangle so let's use the formula: 1/2*b*h. We can see in the picture that your base is 20m and your height is 6m so let's plug in your values to the equation and you'll get 1/2*6*20. Let's then multiply and we'll get 60.
The problem then states that one bag of topsoil is 20 square meters while our area of the triangle is 60sq. meters. Divide, 60/20=3 therefore you will need 3 bags of top soil for the entire triangular flower bed.
To find the number of CD on sale, we can set an equation.
Let y be the number if CD.
As she bought 40%, the amount she bought= 40%y
The equation:
40%y = 80
0.4y = 80
y = 80÷0.4
y=320
Therefore there were originally 320 CDs.
Hope it helps!