the length of the bottom side is 17-3 = 10
to be a square all sides need to be 10 units.
A(7,13)
B (17,13)
Start with the parentheses
Area = 10 * 1/2* * 14 * 25 (note decagon has 10 sides)
= 1750
-2x + 12 = 2y
Add 2x on both sides,
12 = 2y + 2x
Divide by 2 on both sides,
6 = y + x -> x + y = 6
The answer is D.
1. The value of x is 4. X + 4 = 4 + 4 = 8
