Answer:
Step-by-step explanation:
So, when we dilate a triangle, it affects side measures.
So let's find it!


So, the sides of our new triangle is 4 and 12.
Let's find the area!

So, it is the first option! Hope this helps!
P.S. Stay Safe
Answer:
3z(2x - 3)
Step-by-step explanation:
Area of a rectangle, a = height * width
height, h = 3z
width, w = 2x - 3
a = 3z * (2x -3)
expand
a = 6xz - 9z
a = 3z(2x - 3)
Total surface aera
1 big recangle and 2 triangles
rectangle has base of 3+4+5= 12
12*7=84
the 2 triangles
has base is 4
height of 3
2 of them
2*1/2*3*4=12
add total
84+12=96 in^2

Expanding the terms,

Collecting like terms,

Evaluating the terms,

Divide both sides by -15,

When you divide 28,400 by 10,000 you get $2.84 per pound.