1824 the estimate is 1820
Answer:
(5x+20)+(4x-11)=180(linear pair)
9x+9=180
9x=180-9
9x=171
x=171/9
x=19
now,
(2y+19)+(5x+20)=180(co-interior angle)
2y+19+5×19+20=180
2y+134=180
2y=180
y=180/2
y=90
Answer:
The answer is D

That's the only equation will get us one point
Answer:
120km
Step-by-step explanation:
If 1cm=75 km then 1.6cm=120km
Just multiply 1.6 with 75