Answer:
area= 88m
Step-by-step explanation:

9m = base 1
13m = base 2
8m= height
Pretty sure that it is the first answer, the one with the back point between 6 & 8
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.
Answer:
Option 4
Step-by-step explanation:
Given:
Sinθ = 
Since, cos2θ = 1 - 2sin²θ
cos2θ = 
cos2θ = 1 - 
cos2θ = 
cos2θ = 
Therefore, Option 4 will be the answer.
An area of rectangle: a · b
a = 0.4 km
b = 0.07 km
a · b = 0.4 km · 0.07 km = 0.028 km²