How do you find the derivative of y=log(x)y=log(x) ?

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

Acertain volume of water contains 100000 hydrogen atoms and 50,000 oxygen atoms how many hydrogen atoms are in a volume of water containing 4 million oxygen atoms