Henry Hitchcock is 40 years old today and he wishes to accumulate $497,000 by his 62 nd birthday so he can retire to his summer place on Lake Hopatcong. He wishes to accumulate this amount by making equal deposits on his 40 th through his 61 th birthdays. What annual deposit must Henry make if the fund will earn 9% interest compounded annually

Acme foods wants to make its chips saltier, but it doesn't want to spend more than it has to on salt. a sample of consumers are asked to compare its current chip (saltiness = 100) with saltier versions and to say whether the new version is saltier. on average, sample consumers reliably say the new chip is saltier when its saltiness value is 108, but not when its saltiness value is below 108. assuming acme foods' sample consumers are representative of people in general, which of the following best represents the just noticeable difference for saltiness? a. 8% b. 108 c. 80% d. 100