What is 9,740,299 rounded to the nearest 100,000

What is the solution to the equation 9^(x+1) =27

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b