[ 500 OMR OF MONTHLY SAVINGS INVESTED]

[A]	TOTAL SIMPLE INTEREST EACH YEAR	275.00
[B]	TOTAL YEARLY SAVINGS WITHOUT INTEREST	6,000.00
[C]	TOTAL SAVINGS + INTEREST IN BANK MUSCAT YEARLY	6,275.00
[D]	TOTAL FOR 20 YEARS IN BANK MUSCAT	125,500.00
[E]	FV OF ANNUITY IN BANK SOHAR	359,400.62
[F]	TOTAL ANNUITY IN BANK SOHAR	125,500.00
[G]	TOTAL COMPOUND INTEREST EARNED IN BANK SOHAR	233,900.62
[H]	TOTAL VALUE OF SAVINGS AND INVESTMENT	359,400.62

I need the solution from A to D

The result is provided at each point. I need the solution with steps that lead to get the provided result.