300 people, I think. One fourth of 1,200 is 300.
For Phone - 600 x 0.1 = $60
For Internet = 600 x 0.25 = $150
For Utilities = 600 x 0.6 = $360
360 + 150 + 60 = $570
600 - 570 = $30
Answer: $30
1: the square root of 1 is one.
4: the square root of 4 is 2.
9: the square root of 9 is 3.
25: the square root of 25 is 5.
36: the square root of 36 is 6.
81: the square root of 81 is 9.
144: the square root of 144 is 12.
225: the square of 225 is 15.
400: the square root of 400 is 20.
