Please help me with the below questions.

Question

Write a rational approximation, to the nearest thousandth, for each number:
1) Square root 14
2) Square root 1.4
3) Pie
4) Pie -3

Answer 1

1: square root 14 = 3.74165..... so to the thousandth would be 3.74
2 square root 1.4 = 1.18
3 3.14159265357..... would be 3.14
4 .14