Answer:
15
/2
, Square root of 64, 8.14, 8 1/7
Answer:67.5294117647
Step-by-step explanation: Or 67.5
Not 100% sure but it might be B
Those are adjacent angles. They equal 180 degrees.
10x-20+6x+8= 180
16x-12=180
Add 12.
16x= 192
x=12
I hope this helps!
~kaikers
18x can also be expressed as:
= 2x * (4+5)
= 2x * 9
= 18x
ANSWER: 2x * (4 + 5)
Hope this helps! :)