A+b intercepts an arc of measure (360° -110°) = 250°. That makes the value of a+b equal to 250°/2 = 125°.
Answer:
Alex is 8 -- Horse is 50
Alex is 8-8 = 0 -- Horse is 50-8 = 42 years old
The correct value for x is 35 for (3x+16) and (5x-54) both equal 121
Horizontal distance is 47 inches