A certain forest covers an area of 3500 km² suppose that each year this area decreases by 6.75% what will the area be after 15 years?

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

For the quadratic function [tex]y=(x+4)^2-1[/tex] , do the following: a) rewrite the function in the standard form, b) rewrite the function in intercept form, c) find the vertex, d) find the y-intercept, e) find the x-intercepts.

Ithink i know it but i want to be sure so can you me out ?