One way is to estimate
1^2=1
2^2=4
3^2=9
4^2=16
5^2=25
6^2=36
7^2=49
8^2=64
the number 61 is between 49 and 64 therefor the square root of 61is between the intigers 7 and 8 or -7 and -8
68 is composite it has more factors than 1 and itself
1, If 0 are negative the product is positive, but if 2 are negative then answer is still positive. At least 1 but could also be 1,3,5.
The answer is 6 square inches
The answer is A, if the two values are the same because equivalent means equal to one another, or the same.
Hope this helps!
