x-0.1x=36
where x is the original price
0.1x is the discount (10% of the original price)
36 is the price paid
x-0.1x=36
0.9x=36
----- ----
0.9 0.9
x=40
The original price is $40.00
The answer is c and then b and then a
7d+12-14d-3
Combine like terms
-7d+9
Hope this helped.
Hope this helps, I did it on paper that way it would be easier to show my work.
Question 1
Let the scale factor be k.
Then, we have the mapping

This implies that:

We equate any corresponding component find the value of the scale factor k.
6k=2


Hence the scale factor is 
Question 2:
The midpoint of any two points can be calculated using the formula;

We want to find the midpoint of (-8, 5) and (2, -2).


The midpoint is:
