Answer:
The answer is
<h2>

</h2>
Step-by-step explanation:
<h3>

</h3>
<u>Expand the terms in the bracket</u>
That's
<h3>

</h3>
Move - 2x to the left side of the inequality to make it positive
<h3>

</h3>
<u>Add 4 to both sides</u>
That's
<h3>

</h3>
<u>Divide both sides by 8</u>
<h3>

</h3>
We have the final answer as
<h3>

</h3>
Hope this helps you
0.1005454 + 0.0545454 = <span>0.1545454</span>
Hi
85% ⇒ 68
100% ⇒ x
85x = 100·(68)
85x = 6800
x = 6800/85
x = 80
Answer: 80
Convert all to decimal
82%=0.82
86%=0.86
91%=0.91
74%=0.74
Add them
3.33
Divide by 4
3.33/4= 0.8325 will be your mean