Since bc = 6, that makes db = 3 and cd = 3rad3
cd (2) = ac. so ac = 6rad3
so to get ad, you square ac which = 108, square cd which = 3rad3 which equals 27. 108 - 27 = 81. the sqaure root of 81 is 9. ad = 9
Hey there!
The answer is most likely option A
Because,
First, we have to
add by

on each of your
sides!
Like:

We get this as our answer for this portion:

Nextly, we have to
divide by

on each of your sides
Like:

Therefore your answer would be:

Good luck on your assignment and enjoy your day!
~
Answer:
C. 7.15 cm
Step-by-step explanation:
step 1
Find the new length of the floor
Remember that

The new length is equal to the original length multiplied by 1.30
so

step 2
Find the length of the floor on the new scale drawing
we have that
The scale drawing is

That means
1 cm in the drawing represent 6 feet in the actual
Multiply the length of the floor in the actual by the scale drawing
so

If a student took a test which had 6 questions and will receive 8 points if they were all correct you could use
6q = 8
q being the questions