Tisha started a petition for lawmakers to change a certain law. As word spreads, more and more people are showing interest. She is gaining about 500 signatures each week.

If 2,000 people signed the petition initially, write an equation that will show the number of signatures that can be expected after w weeks. Write your answer in the box below.

Instruction: Write your answer without any space(s) and Write it in the form N=a+bw. (Here N = number of signatures that can be expected after w weeks.)