Estimate the value of square root of fifty-two to the nearest whole number.

A. 9
B. 8
C. 7
D. 6

The square root of 52 lies between 7 and 8 because 7^2=49 and 8^2=64. Since 52 is closer to 49 than it is to 64, rounding down to the nearest whole number would result in 7, so the answer is C.