#2. There are 60 sec. in a minute and 60 mins. in an hour and 24 hours in a day. The math would be 60•60•60•24=5,184,000. Then, you multiply 5,184,000•7=36,288,000. Multiply 36,288,000•16=580,608,000.
#3. There are approximately 914.4 millimeters in 1 yard. So then, we multiply 914.4•54=49,377.6.
#4. I looked this one up, so I can't show the work for this one but the answer is 0.805 miles per hour.
