5+5=−10

1.p=1

2.p=3

3.p= -3

4.p= -1

Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!

cutt.ly/wzUiVyK

28 cm

Step-by-step explanation:

We can write a similarity statement to help us:

TUV ~ LMN

TU corresponds to LM; this gives us the ratio

8/x

TV corresponds to LN; this gives us the ratio

6/21

Together, they give us the proportion

8/x = 6/21

Cross multiplying, we have

8(21) = x(6)

168 = 6x

Divide both sides by 6:

168/6 = 6x/6

28 = x