You bought a guitar 6 years ago for $400. it's value decreases by about 13% per year. write a formula to show the value of the guitar over those six years and determine its current value

may i see the picture? it would a lot, xox

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.