Which polynomial is a perfect square trinomial?

25x2 − 20x − 16

9a2 − 30a − 25

25b2 − 15b + 9

16x2 − 24x + 9

Which is greater, 7 p 5 or 7 c 5? 7p5 7c5

Bernice paid $162 in interest on a loan of $1800 borrowed at 6%. how long did it take her to pay the loan off?

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?