The standard form equation of the line connecting the two points is 
Linear equation in a standard form is given as 
where,
A, B, and C are constants or numbers
x and y are the variables.
To solve this problem, the following steps would be taken:
Step 1: Find the slope of the line connecting points (-3,4) and (2,-6)

where,

Substitute

Step 2: Find the y-intercept (b) of the line by substituting
and
into
(slope-intercept form)

Step 3: Write the equation of the line in slope-intercept form by substituting
and
into 

Step 4: Rewrite the equation in standard form 

Add
to both sides

The standard form equation of the points (-3,4) and (2,-6) is 
Learn more about standard form of two points of a linear equation here:
brainly.com/question/18446164
For the first part:Every shirt she grabs, will cost her dollars, so if she grabs 3 shirts, then the cost of the shirts is:

With the same rationale, if she grabs 2 pairs of jeans, the cost of the jeans is:

So, her total is:

If you subtract 3 from the total, then the expression is:
For the second part:If she's paying 3 less for each shirt, then the cost of 3 shirts will become:

In the same fashion, for the two jeans:

So the expression for the total cost is:
For number three:The amounts are different because the cost of the total purchase is different than the cost of each element that makes up the total purchase.
For number four:If you're the owner, you want to give the smallest amount of discount (the one in part 1/a).
So you could clarify by saying there's 3 dollars of the TOTAL purchase's cost.
C.i need help...
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