Opposite angles are supplementary, the sum is 180 degrees.
6x+10+81.5=180
Combine like terms:
6x+91.5=180
Subtract 91.5 to both sides:
6x=88.5
Divide 6 to both sides:
x=14.75
The answer is 1) 14.75
Hope this helped!
Answer:
2/2. and 4/4
Step-by-step explanation:
because 8/8 is 1 and 2/2 and 4/4 are both 1 .
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.3455 is the correct answer.
Answer:

Option D is the correct option.
Step-by-step explanation:

When there is a ( + ) in front of an expression in parentheses , there is no need to change the sign.
That means, the expression remains the same.
Just remove the unnecessary parentheses
⇒
Collect like terms and simplify
⇒
⇒
Hope I helped!
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Answer:
168
Step-by-step explanation: You would do 140/100 = 1.4 then multiply 120 by 1.4 which is 168.