Answer:
The sales figure in year 3 is 81,947
The sales figure in year 4 is 90,142
Step-by-step explanation:
The number of copies the publisher expects to sell in 3rd and 4th can be determined by computing the growth rate and increased sales from year 1 to year 4.
Year growth sales
1 52,500*(1+16%) 60,900
2 60900*(1+16%) 70,644
3 70644*(1+16%) 81,947
4 81,947*(1+10%) 90,142
The sales of finance books in year 3 and 4 are 81,947 and 90,142 respectively
Note that the growth rate is continuous that accounted for the need to apply the growth rate to the previous year sales in order to arrive at current year sales