Suppose you deposit $2,000 in a saving account that says interest at an annual rate of 4%. If no money is added or withdrawn from the account, answer the following question. a How much will be in the account after 3 years? b. How much will be in the account after 18 years?

C. How many years will it take for the account to contain $3,000?

80

Step-by-step explanation:

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

24

step-by-step explanation: