Answer:
this is for the first one
It's probably 8 actually. Because you measure the AC and the CB and just subtract.
I will draw a new chapter for the first chapter of class in chapter chapter class ti
Answer:

Step-by-step explanation:
We have two triangles and three rectangles.
The formula of an area of a triangle:

b - base
h - height
The formula of an area of a rectangle:

l - length
w - width
TRIANGLE:
b = 11 in, h = 7 in

RECTANGLE 1:
l = 11 in, w = 14 in

RECTANGLE 2:
l = 9 in, w = 14 in

RECTANGLE 3:
l = 8 in, w = 14 in

The Surface Area:

Substitute:

So,
To divide a fraction by a fraction, all you need to do is invert the second fraction and multiply the resulting fractions.
Step 1: Flip the second fraction.

Step 2: Multiply the fractions.