The coach for the cheerleaders is shopping for uniforms for eight new
cheerleaders.
Sports Discount is offering a 20%
discount on each uniform. Each
uniform is priced at $68.00. A 7%
sales tax will be applied to the
discounted price.
The same uniforms are also available
on Cheerleading for Less web site for
$56.50. The tax on the uniforms is
8.5% plus a total shipping fee of
$29.99 for the entire order.
What is the difference in the total
costs of the 8 new uniforms between
the two stores?

correct answer is c. just did it

step-by-step explanation:

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.