Answer:
(a+2, -b)
Step-by-step explanation:
Reflection across x-axis transforms the point (x, y) into (x, -y).
Translation 2 units to the right transforms the point (x, y) into (x+2, y).
Point T is the reflection of point Q which has the coordinates (a,b), then, point T is placed at (a+2, -b).