Question

Formula of sum invested

Answer 1

Step-by-step explanation:

A "basic investment" is one where you start with an initial principal, invest it at an annually compounded rate of return, and add equal contributions every year.

...

Basic Investment (Growth and Contributions)

YearBalanceNowP1(P + c)z2((P + c)z + c)z

Answer 2

Answer:

principal= 100×intrest/time×rate