An investment will pay $$150$ at the end of each of the next $3$ years, $$250$ at the end of Year $4,$$$400$ at the end of Year $5,$ and $$550$ at the end of Year $6.$

a$.$ If other investments of equal risk earn $7\%$ annually, what is its present value? Round your answer to the nearest cent.

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b$.$ If other investments of equal risk earn $7\%$ annually, what is its future value? Round your answer to the nearest cent.

$ $$