It is 64.
64
4
58
77
58
It is: (20+80)/2 = 50
prime numbers between 50 and 80 = 53,59,61,67 ,71,73,79
No
50
The prime numbers between 50 and 80 are 53, 59, 61, 67, 71, 73, and 79.
64
A clown
50 80
No, there aren't any square numbers between 70 and 80. From 70 to 80, no number has a perfect square root, so no square number exists between 70 to 80.
80
It is: 80 times 50 = 4,000 square feet
It is: 50
It is: (20+80)/2 = 50
65
81; because 92 is 81.
No, 80 is a not perfect square.
No but 81 is a square number