3a.
Explanation:
the mean, first of all, is the average. so, you need to find the average between 2 ans 4 since it has the same label. 2+4=6. 6/2=3
Answer: 3a
Step-by-step explanation:
The Standard Form of the equation of line is given by:
So:
The x-intercept can be found setting 
:
<h2>Learn more:</h2>
Parabola: brainly.com/question/10605728
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Setting up the equation
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1)Add two x and four x together on the left side. On the right, add 10 and 7.
6x+3=17-x
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Solve:
2)Add x to both sides.
7x+3=17
3) Minus 3 from both sides
7x=15
Divide 15 by seven.
x=<span> 2.14285714286
</span>Hope this helped! Have a happy holiday!
Step-by-step explanation:
21/20 = m/100
m = 100 * (21/20) = 105.
I think it isnt a right triangle, but im sorry if thats wrong
