Tuesday at the zoo 5/12 of the visitors were adults. of these adults 3/10 were men what fraction of the people who visited the zoo on tuesday were men

5/12 were adults and 3/10 of that fraction were men so just multiply 5/12×3/10=15/120=1/6 were men

The answer is c because you turn 17.5% into a decimal which gives you .175 then you times that by $361.35 which gives you 63.23625 but then you round that which gives you 63.24. then you at 63.24 pulse 361.35 and you round it which gives you $425