Look at my picture, what’s the missing statement in step 4?

Step-by-step explanation:

∠ACE=∠ BCD (reflexive property )

It is common to both the angles or both the angles represent the same angle.

We have to prove two triangles are similar.

Here we show two angles of different triangles are equal.

Hence similar by AA  

d

step-by-step explanation:

d

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!