my teacher from lss found out that i copied and pasted my answers now i'm failing im so dead help me °^°

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

Ineed the solution to this problem and the steps.

In 2000 there were 100 rabbits in central park the population increased by 16% each year ? write a function to illustrate the situation. how many rabbits were in central park in 2005 . predict how many rabbits there will be at the end of this year we are in 2018?