For starters, find the common change in the terms, in this case each goes down by 3. This lets you know you're gonna have a -3n in your equation as each term decreases by 3. Your equation should be in f(n)=c+rn form, with r being change in f(n), or -3 in this case. This gives you f(n)=c-3n. Now, solve for c, add 3n to both sides to get f(n)+3n=c. Plug in your n of 1 and f(n) of 20 to get c=20+3(1)=23. Plug in your c to your f(n) formula to get f(n)=23-3n as your f(n) function.
Standard form of 2.3476 E12 is 2347600000000
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Answer:
9.25% monthly
.095/12 = .0079167
so every month multiply by
1.0079167
y = 1,000 (1.0079167)^(12x)
now just activate your calculator :)
Step-by-step explanation: