Answer:
a = 2
b = 7
Explanation:
The given rectangle is a parallelogram. 
- WZ = XY
10b + 1 = 9b + 8
- Transfer like terms to the same side of the equation 
10b - 9b = 8 - 1
b = 7
 2. WX = ZY
6a + 4 = a + 14
- Transfer like terms to the same side of the equation 
6a - a = 14 - 4
5a = 10
a = 2