It's recommended that a person drink six 8-ounce glasses of water a day. Which expression shows how many ounces of water a person should drink over a 5-day period?

6*5

oops. 6*8*5

To find out how many ounces of water a person should drink over a 5-day period, you need to multiply the number of glasses they should drink each day by the number of ounces in each glass, and then multiply that by the number of days.

In this case, a person should drink 6 glasses per day, and each glass is 8 ounces. So, the expression to calculate the total ounces of water a person should drink over 5 days is:

(6 glasses/day) * (8 ounces/glass) * (5 days) = 240 ounces

Therefore, a person should drink 240 ounces of water over a 5-day period.