You first identify what supplementary angles are,angles that add up to 180.
5x+2+8x+9=180
17x+11=180-11
17x=169
x=169divided by 17
x=9.9411
x=10 when rounded into the next value
8x*10=80+989
Answer:
C
Step-by-step explanation:
3:4
4:3
and the dots are 4:3
Answer:
660.5
Step-by-step explanation: