Estimate the value of ✔️45 to the nearest integer

Question

A.-7
B.6
C.-6
D.7
An estimate for -✔️66 is
A.-6
B.-7
C.-8
D.-9
An estimate for ✔️123 is
A.10
B.11
C.12
D.13. (The check mark is square root)

Answer 1

6 * 6 = 36
7 * 7 = 49
The square root of 45 must be 7.

I'll be glad to check your answers for the other two.

Answer 2

Thanks but i figured the rest out after what you posted

Answer 3

is it c.