At the beginning of an environmental study, a forest covered an area of 1500km^(2). Since then, this area has decreased by 7.75% each year.

Answer 1

A = 1500e^-.0775t = 1500/e^.0775t

is the formula for the area of the forest after time t years since the study was first done

or

A = 1500(1- .0775)^t = 1500(.9225)^t