Help me plz I am stuck on this

Given the function f(x) = log base 4(x+8) , find the value of f^-1(2)

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.