Midnight to 3 a.m.: 20%
3 a.m. to 6 a.m. 5%
Midnight to 6 a.m. = 20% + 5% = 25%

The solution of the equations is the coordinates of the point where the two lines intersects, so the required solution is :
Answer:
they became "roamin' numerals"
Step-by-step explanation:
I'll solve 21, and you then should be able to solve the rest on your own!
Since ADC is 135, that means that that whole angle is 135 degrees. In addition, since angles ADB and BDC add up to ADC, we get ADB+BDC=ADC=135=11x+9+7x=18x+9. Subtracting 9 from both sides, we get 126=18x. Dividing both sides by 18, we get x=7. Plugging that into 11x+9=BDC, we get 11*7+9=77+9=86
The correct answer is B)
Hope this helps!