Answer:
x = 27
Step-by-step explanation:
The angle at any point on a straight line is 180 degrees.
The middle line over there is creating a right angle which is 90 degrees.
This must mean that both sides are 90 degrees.
3x+9 = 90
3x = 81
x = 27
Add 7 and 7 which is 14 and then take it apart because it is an even number
The answer for number one is -3.938.
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https://www.algebra.com/algebra/homework/Finance/Finance.faq.question.1029380.html
