What is 645000 rounded to the nearest thousand

Okay so i didn't get this problem petro bought 8 tickets to a basketball game he paid a total of $200 write an equation to determine whether each ticket cost $26 or $28 so i didn't get this question so yeahyou have a good day.

Write the equation in logarithmic form m^x=n

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12