Suppose a sample of a radioactive substance weighs 36 mg. One year later, the sample weighs 29.5 mg. What is the half-life of this substance? (Round your answer to two decimal places.)

Determine the fraction of total interest owed. after the fourth month of a 12-month loan: the numerator is: {(n + ) + (n + ) + (n + ) + (n + )} = , and the denominator is: {(n) + (n + 1) + + (n + )} = . therefore, the fraction is numerator/denominator (to the nearest tenth) =

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)