I’m stuck on this one which One is correct ?

What term makes it inconsistent y=2x - 4

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 difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.