Using proportions, the algebraic expression for the cost of the 24 ads with the discount is:
Cost = 21.12c.
In which c is the cost of a single add.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.
For this problem, if more than 10 ads are posted, the cost C of each job is discounted by 12%, that is, it is of 88% of C. Hence, the algebraic expression for the cost of the 24 ads with the discount is:
C = 24 x 0.88 x c = 21.12c
In which c is the cost of a single add.
More can be learned about proportions at brainly.com/question/24372153
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Given, All sides are equal. So it an equilateral triangle where all the angles are equal.
Sum of the interior angles =180
x+x+x =180
3x=180
x=180/3
x=60
Parallel lines have the same slope
The equation of the line is: 
The equation is given as:
The slope intercept form of an equation is:
Where:
By comparison,
The line is said to be parallel to .
This means that the line has a slope of
The equation of the line is then calculated as:
Where:
So, we have:
Substitute values for m, x1 and y1
Open brackets
Hence, the equation of the line is:
See attachment for the graphs of and
Read more about equations of parallel lines at:
brainly.com/question/402319
All you have to do for this one is 650 divided by 76 which is 8 but it won't go into it evenly
It cost $ 3.08 for seven stamps
