Answer:

Step-by-step explanation:
To find the slope of a line which is perpendicular to another line, you need to find the opposite reciprocal of the first line's slope.
To find the opposite, flip the slope's sign. Your original slope is
, so your opposite slope is positive
.
To find the reciprocal, flip the fraction. This changes your slope from
to
, which may be written as just 7.
Therefore, your slope is 7.
To find your b term (your y-intercept) given that your x-intercept is -7, you can make use of point-slope form.

<em>(m=slope)</em>
If your x-intercept is -7, then the point at which your line intersects the x-axis is (-7, 0).

Answer:
The correct option which best describes this method is:
Find half of 24 to calculate the radius. Then square the radius and multiply the result by
Option D is correct option.
Step-by-step explanation:
The circumference of table top = 24
inches
We need to find area of table top
The formula used to find area is: 
We need to find radius of tabletop.
The formula used to find circumference is: 
Putting value of circumference we can find radius

So, radius of table top = 12
Now, finding the area:

So, the correct option which best describes this method is:
Find half of 24 to calculate the radius. Then square the radius and multiply the result by
Option D is correct option.
Answer:

Step-by-step explanation:
The mean is the sum of the allowances divided by the number of students.
