Answer:
x=25.3
upper angle: 139.2
lower angle: 32.6
Step-by-step explanation:
4x+38+2x-18=180
add like terms
6x+28=180
subtract 28 on both sides
6x=152
divide by 6 on both sides
x=25.3
Upper angle:
4(25.3)=101.2
101.2+38=139.2
Upper angle= 139.2
Lower angle: 2(25.3)=50.6
50.6-18=32.6
Lower angle: 32.6
