Question

HELP ME! RIGHT NOW!!

Answer 1

Explanation:

80+(2z-10)=180 {sum of angles in straight line is 180}

• 80+2z-10=180
• 70+2z=180
• 2z=180-70
• 2z=110
• z=110/2
• z=55

now, 2z-10=2×55-10

=110-10

=100

therefore z=55 & 2z-10=100

Answer 2

Since that angle all together is 180, 100 is 2z-10 and z is 55