To compute the <span>25% income tax
</span>$42,000 x <span>25 / 100 = $10,500
</span><span>the least salary he can earn will be
</span>$42,000- <span>$10,500 =$31,500</span><span>
</span>
Answer:
The equation of the line is
, that passes through points 
Step-by-step explanation:
Given points are 
We need to write the equation of the line that passes through these points
First, we will find slope of this line

So, our slope is
. Now, we will plug the point
in the equation below.

So, the equation of the line is
.
Answer:
96.8 percent
Step-by-step explanation:
You can cut off two zeros from both numbers to compare 1000 to 32.
The difference is 968, and the original is 1000.
So you divide 968 by 1000 to get 0.968 which is equal to 96.8 percent.
Answer: a. n= 1068
b. n= 164
Step-by-step explanation:
The formula to find the sample size :

, where p=prior population proportion , z* = critical z-value and E = Margin of error.
Here , let p=proportion of computers that use a new operating system.
Given : Confidence level = 95%
i.e. z* = 1.96 [by z-table]
Margin of error : E = 3% =0.03
a. If p is unknown , then we assume p=0.5
Then, 
i.e. n= 1068
b. p=0.96
Then, 
i.e. n= 164.