can you help me with this mathswatch question please and thank you!!

Answer:
a) 3.14159
b) C = 355/113
Step-by-step explanation:
a) 3.1415926536
number 2 rounds down so it stays at 9
b) π = 3.14159
A - 22/7 = 3.14286
B - 135/43 = 3.13953
C - 355/113 = 3.14159
D - (62/35)² = (1.77142857)² = 3.13796