Answer:
D. 97
Step-by-step explanation:
The reason being is that his average should only be going up if he is dropping his lowest test score. And the only answer that shows his score going up is D.
<h2>
Hello!</h2>
The answers are:
3. Addition property of equality
4.
- Simplification
7. 
<h2>
Why?</h2>
To solve the problem, we need to start with the result of the second step:

So,
For the step 3:
Then, for the 3rd step, we have to apply the addition property of equality.
The addition property of equality states that if we add a term to one side of the equality, we need to add it to the other side of the equality, in order to not alterate the equality.
Then, applying the property, we have:

Adding 7 to both sides, we have:

For the step 4:
Now, for the 4th step, we have to simplify the expression:

Then, simplifying, we have:

For the step 7:
Simplificating, we divide each side of the equality by 6:

Have a nice day!
From the problem, the way the spinner is set up could be
red red blue blue green green yellow yellow purple purple
with two sections of each color and 10 total equal sections.
From this we know that 4 out of the 10 sections are red or green.
That means that there is a 4/10 chance of getting a green or a red every time Kevin spins.
Multiply 180 by 4/10 and you get 72.
The spinner will land on red or green about 72 times.
Hope this helps!
Answer:
2 roots
Step-by-step explanation:
1.87082869
-1.87082869