What is the answer to 1+1 =? anybody answer please.

Find the solution of system of equation y= x-4 y=4x+2

In 2009, there were 1570 bears in a wildlife refuge. in 2010, the population had increased to approximately 1884 bears. if this trend continues and the bear population is increasing exponentially, how many bears will there be in 2018?

Write the equations in logarithmic form 9^4=6,561