Answer:
There is a 3/20 chance that a red plastic marble will be taken out on random.
Step-by-step explanation:
This is because there are 14 yellow marbles, and 6 red marbles. Along with this, half of the red marbles are made out of plastic. This leaves 3/6 of the red marbles made out of plastic. When combined with the yellow marbles, you'll add 14 to the denominator, since there are 14 yellow marbles. (Red + Yellow = Total Number Of Marbles) This leads to a total count of 3 marbles of the 20 total marbles, being red and made out of plastic.
Answer:

Step-by-step explanation:
I believe this is the correct answer. In order to check that my equations are correct I put in some dummy numbers.
a= 2
b=4
c= 
Well it boils down to 18 - (4 + 9) which is 18 - 13 or 5. So the answer is 5 in this equation.
Where is the graph, this question is impossible without the bar graph Steven supposedly recorded.
Answer:
The slope between the two points: (3, 20) and (5, 8) is -6.
Step-by-step explanation:
Put the points in the slope formula:
m = (y₂ - y₁)/(x₂ - x₁)
Substitute the values.
m = (8 - 20)/(5 - 3)
Subtract.
m = (-12)/2
Divide.
m = -6