Write 5×5×5×5×4×4×4 in exponential form

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

Need this asap if anyone can i would be very grateful. if you could show workings that would really

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.