<u>Answer:</u>
Almost 1830208 ePhones would be sold at the end of 5 years.
<u>Explanation:</u>
Initial year sale : 800,000
First year sale : 800,000 + (18 % (800,000)) = 944,000
Second year sale: 944,000 + (18 % (944,000)) = 1,113,920
Third year sale : 1,113,920 + (18 % (1,113,920)) = 1,314,426
Fourth year sale : 1,314,426 + (18% (1,314,426)) = 1,551,023
REQUIRED YEAR:
Fifth year sale : 1,551,023 + ( 18 %(1,551,023)) = 1,830,208
Hence, we can conclude that 1830208 phones would be sold at the end of 5 years.