Isabelle has $1000 in her savings account. Her account earns 5% interest each year. If Isabella does not withdraw or deposit any money in her account for five years, write an equation that models this
situation How much will be in her account at that time?

i think it would be 42cm

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

there are no answer choices

step-by-step explanation: