Answer:
A
Step-by-step explanation:
these two triangles are similar
therefore corresping sides are proportionate
12/8=9/x
12x=72
x=72/12=6
Answer:

Step-by-step explanation:
The slope-intercept form of an equation of aline:

<em>m</em><em> - slope</em>
<em>b</em><em> - y-intercept</em>
The formula of a slope:

From the graph we have the points:
(-2, -5)
y-intercept (0, 3) → <em>b = 3</em>
Calculate the slope:

Put the value of the slope and the y-intercept to the equation of a line:

The sum of the angles of a quadrilaterals is 360 so 8s=360 s=45
Answer:
hope this an helps
Step-by-step explanation: