6 days, runs every 4 days, and cycles every 16 days. If she did all three activities today, in how many days will she do all three activities again on the same day?

In 48 days.

Step-by-step explanation:

You didn't say what the 6 day one was so im going to use swimming.

swims every 6 days---> Multiples of 6---> 6-12-18-24-30-36-42-48-54

runs every 4 days> Multiples of 4> 4-8-12-16-20-24-28-32-36-40-44-48

cycles every 16 days---> Multiples of 16---> 16-32-48-64

therefore

In 48 days she will do all three on the same day.

i think the amount would be $140.62

the answer is 8/21

hope this