Answer:
13. m∠VST = m∠RSV - m∠RST = 67 - 41
m∠VST = 26°
14 - 15. [tex](5x+10)+(2x-5)=180[/tex]
[tex]7x+5=180[/tex]
[tex]x=\frac{180-5}{7} =25[/tex]
∠DBC = 2x - 5 = 2(25) - 5 = 45°
