A characteristics of an exponential decay function is it has a constant term that is lesser than 1, this is because when you raise it a number that is lesser than 1 to higher values the result will be lesser and lesser, that is why it is called decay function. so the decay functions are a. f(x)=0.9^x and d. <span>j(x)=(4/5)^x</span>
Hold on let me try to help let me figure it out for you
Subtracting .5 pounds from 11 leads you with 10.5 divide that by 4 to get the weight of each notebook, 2.625
-2/9
3/9 * -2/3
Mark brainliest please
