.For two matrices (a 3)=(-4 3), what is the value of a?

Use sigma notation to represent the following series for 9 terms.

Which one is the correct answer, and why?

Acredit union pays 5% annual interest, compounded daily, on savings deposits. find the value after one year of $500 deposited in this account. $525.64 $25.64 $20.40 $520.40