John gave a friend a loan to be repaid in two years of $43,000 to be compounded annually. What is the amount of
Interest will his friend have to repay?​

, 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

10 - 75

step-by-step explanation:

there's nothing attached so it's most likely anything in that range.

the correct answer is 1.7