1. if √16 = x, then x^2
A. 16
B. 8
C. 4

2. Which of the following numbers is irrational? Select all that apply (there will be more than one answer).
A. √25
B. √49
C. √3
D. √36
E. √15

4. The best approximation for √10 is _____.
A. 5
B. 100
C. 3.1
D. 25
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