Easy 6th grade expressions. am i doing it right? ?

How to write four times a number,minus 6,is equal to theee times the number+8 as an equqtion

What are the domain and range of f(x)= -log5(x+2)

Captain umaima has a ship, the h.m.s. khan. the ship is two furlongs from the dread pirate nadia and her merciless band of thieves. the captain has probability 3/7 of hitting the pirate ship. the pirate only has one good eye, so she hits the captain's ship with probability 2/5. if both fire their cannons at the same time, what is the probability that the captain hits the pirate ship, but the pirate misses.