PLEASE NO LINKS, Find the measurement in parallelogram.
Need help, please.
I also need explanation.

21.) x = 0

23.) x = 0

Step-by-step explanation:

21.)

We know that Sides AD and BC are parallel to each other, so they are congruent as well, thus we can say:

x + 12 = 12

=> Now just subtract 12 on each side of "="

x = 0

23.)

We know that sides SV and TU are parallel which makes them congruent, hence;

12 + 2x = x + 12

=> First subtract x from each side,

12 + x = 12

=> Lastly subtract 12 on each side:

x = 0

Hope this helps!

idk do it yourself or ask somebody idk stop going online asking for

not enough information

step-by-step explanation:

we cannot know this, because the other students could have handed out 10 flyers, or they could have handed out 100. one way, the mean would go up, and another way, the mean would go down.