There is no fixed equation when I arrived at these numbers.
I just did trial and error. I came up with 25 and -8 as the numbers.
200 ÷ 25 = 8 ⇒ the sum of 17 depends on the signs of each numbers.
-8 x 25 = -200
-8 + 25 = 17
Answer:

Step-by-step explanation:
Given


Required
Determine the sales price
First, we calculate the discount price



The sales price is then calculated by subtracting the discount price from the original price of the item



The Free Application for Federal Student Aid (FAFSA) is a form that can be prepared annually by current and prospective college students (undergraduate and graduate) in the United States to determine their eligibility for student financial aid.
Answer with Step-by-step explanation:
f(1) = 160 and f(n + 1) = –2f(n)
⇒ f(2)= -2×f(1)
= -2×160
= -320
⇒ f(3)= -2×f(2)
= -2×(-320)
= 640
⇒ f(4)= -2×f(3)
= -2×640
= -1280
Hence, Value of f(4) is:
- 1280