How do i solve this type of rational equation (x^2-16)/(4-x)

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

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?

Aline has a slope of negative 1/4 the past two points -5/4 and 1 what is the equation of the line