Describe and correct the error in the problem. plz do the correction  right.

Vertical angles share a vertex, and have the same lines for sides, but do not have a side in common. Angles ACB and BCD have side BC in common, so cannot be vertical angles.

Angles ACB and ECF are vertical angles.

There is no vertical angle in the diagram corresponding to ∠BCD, as ray CD is not part of a line that passes through point C.

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!

answer: 414,377,008

step-by-step explanation:

just multiply it