Combine like terms 10a-10a+1

Find the missing factor. 7s2 + 25s + 12 = (s + 3)( ).

An arithmetic series a consists of consecutive integers that are multiples of 4 what is the sum of the first 9 terms of this sequence if the first term is 0

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?