$16(4 shirts)= $64
5%=$64(0.05)=$3.20
Jamal's total is $67.20
Width = 4ft
Length = 6ft
<u>Explanation:
</u>
Let length = l ,
So, width = 2l-8
Perimeter of rectangle = 2x(length + width)
According to the question,

Hence,
Width = 4ft
Length = 6ft
Answer:
Step-by-step explanation:

So in order the trinomial a perfect square we need

When n is equal to this number that we have

They are perpendicular because when you change 2x+8y=16 to slope intercept form it becomes y= -1/4x+2 and the slope (-1/4) is the negative reciprocal of 4, which is the slope for your other equation.
Please comment if you have any questions :)