the length of z is C. 15 cm
A straight line has a degree of 180 degrees.
So you are trying to find the angle that is created with the points j,m, and l.
so take the other angle 54 degrees and subtract that by 180.
180-54=126 degrees.
so now that you have the angle of J,M,L set that to equal 3x
3x=126
divide 3 from both sides
x=

so x =42
Let me know if you have any questions.
Read more on Brainly.com -
brainly.com/question/9937300#readmoreThis is the exact same question as I just answered here:
brainly.com/question/9937300
It is not a function because there can't be two of the same number on the x-axis.
Answer:
B
Step-by-step explanation:
Answer:
<h2>462</h2>
Step-by-step explanation:
15% of 840 is 126
30% of 840 is 252
252
<u>+ 126 </u>
<em> 378</em>
<em></em>
840 - 378 = <em>462</em>
or
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55% of 840 is...
<em>462</em>
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<em>Hope this helps! <3</em>