$($Future value$)$ Sales of a new finance book were $19,000$ copies this year and were expected to increase by $21$ percent per year. What are expected sales during each of the next $3$ years? Graph this

sales trend and explain.

a$.$ If the $19,000$ copies of book sales this year were expected to increase by $21$ percent per year, what are the expected sales of the new finance book next year?

b: In $2$ years?

c: In $3$ years?