Which of the following is not a perfect square trinomial?
1)144 + 12y + y^2
2)100 + 20y + y^2
3)64 − 16y + y^2
4)25 + 10y + y^2
i need with this one,

Here is my question! jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?

If a suspect is in possession of 20 grams of cocaine how many ounces does he possess what will the charge be