Could someone please help me solve these 3 questions.. 20 points and brainest if you answer all 3

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

The late fee for library books is $2.00 plus 15¢ each day for a book that is late. if maria’s fee for a late book was $3.20, write and solve a linear equation to find how many days late the book was.

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?