Five even integers. Square root of 37 is a little more than 6 (but less than 7). Square root of 257 is a little more than 16 (less than 17). So the even integers are: 8, 10, 12, 14, 16. There are five of them.
The even integers between -4 and 4 are: -4, -2, 0, 2, 4
There are 10 even integers between -10 and 10 (excluding -10 and 10).
1001
18, 20, 22, 24, 26. 5 even integers
500 of them.
( -2,0,2 ) three
Nine of them.
48
Only integers are even, so there are 9: 4,6,8,10,12,14,16,18, and 20.
Eleven -10, -8,-6,-4,-2,0,2,4,6,8,10
Eleven -10, -8,-6,-4,-2,0,2,4,6,8,10
Eleven -10, -8,-6,-4,-2,0,2,4,6,8,10