Question

plz help im an idiot

Answer 1

Answer:

3.)138

4.) 149

Step-by-step explanation:

you add the two inside measures together.

Answer 2

Answer:

3- 42, 4- 137

Step-by-step explanation:

<1+<2+x=180

93+45+x=180

x=180-93-45

x=42

<1+<2+<3=180

43+106+<3=180

<3=180-106-43

<3=31

<3+x=180

43+x=180

x=180-43

x=137