Answer: 
Step-by-step explanation:
<h3>
The missing picture is attached.</h3><h3>
And the missing options are:</h3><h3>
</h3>
For this exercise it is necessary to remember the definition of "Vertical angles".
Vertical angles are defined as those angles that are opposite to each other and share the same vertex. These angles are congruent, which means that they have equal measure.
You can identify in the picture that 
and 
are Vertical angles, then they are congruent.
Based on the above, you can set up the following equation:
Now you must solve for "b" in order to find its value:
Finally, substituting the value of "b" into 
and evaluating, you get:
<span>quadrilateral, sum of interior angles = 360
</span><span>ratio 1 : 2 : 5 : 4
so 1+2+5+4 = 12
360 / 12 = 30
1 x 30 = 30
2 x 30 = 60
5 x 30 = 150
4 x 30 =120
answer
</span><span>
</span><span>The four angles of the quadrilateral are 30,60,150 and 120</span>
Answer: No
Step-by-step explanation:
$12-$4.50= $7.50
$7.50*15= $112.50
The Total cost is $135 She will only be making $112.50 in profits.
Answer:
35 red marbles
Step-by-step explanation:
So we can put the different color marbles in a ratio. So 7:2:11. If we add all of those up we get 20. We do 100/20 to get 5. Each number in the ratio is equivalent to 5 marbles. Then we do 7*5 to get 35. We can check our work by doing, (7*5) + (2*5) + (11*5) = 100. And it does equal 100 so the answer is correct.
7.5x18.74= 140.55 is the correct answer
