I believe 420 is 8.4% of 5,000. So x= 5,000.
One half of 5 less than 10 =
(10 - 5)/2
5/2 = 2.5
So, the answer is 2.5
Point B and Point D are on the line
8√3 · 9√27
8 · 9 ·√3 · √27
72 · √81
72 · 9
648
The answer is 648. :)
Simple drawing shows that measure interior angle at B is 25 degrees.
Easily seen from a drawing are that measure of angle CBD is 25 degrees, and measure of angle CAD is 65 degrees (which was already given).
Heres the plot formula!