Answer:
everything except for C
Step-by-step explanation:
A - √2 is definitely over 1, so if you add a 4 to that, you'll get an answer over 5. (yes)
B - π is about 3.14, and since it's multiplied with 2, you'll obviously get a number greater than 5. in this case though, it'll be around 6.3. (yes)
C - √28 is a little greater than √25, so you can estimate using that. 15/5 is 3, and 5.2 - 3 is 2.2. (no)
D - √7 is around 2.7. if you divide 29 by that, you'll get an answer great than 10. (yes)