Answer:
164,932,693,079.5
Explanation:
To start you must add 78.9 to 32,986,538,537 which will give you 32,986,538,615.9. Then you must multiply 5.
9*5=45 keep the keep the 4 drop the 5
5*5=25+4=29 keep the 2 drop the 9 and continue doing this. Until you get to 3*5=15+1= 16 and you get your answer
164,932,693,079.5