Answer:

The graph is attached.
Step-by-step explanation:
Let be "x" the number of metamorphic samples and "y" the number of sedimentary samples.
You know that you want to to have at most 25 samples, then:

And you want to have at least 3 times as many sedimentary samples as
metamorphic samples, then:

Therefore, the system of inequalities that model the situation is:

The y-intercept of the line
is:

And the x-intercept is:

Knowing this, you can graph the line
The y-intercept of the line
is:

And the x-intercept is:

Knowing this, you can graph the line.
Observe the graph attached, where the solution of the system of inequalities is the intersection of the regions.
Answer: 2/3x 3/5 = 6/15
Step-by-step explanation: the grid has 15 squares so shade in 6 of the 15 squares
Answer: 8.1 pounds
Step-by-step explanation:
fat in pounds = 44* 18.5/100=8.14 pounds
rounding to the nearest tenth would give 8.1 pounds
Answer: n=4
Step-by-step explanation: 1:4 = 6:24