Find distance traveled in feet after 12 seconds at 87 miles

Find distance traveled (in feet) after 12 seconds at 87 miles per hour

Get consistent units.
1 hour=3600 seconds
1 mile=5280 feet
87 miles/hr (1 hr/3600 sec)(5280 ft/mile)= 127.6 feet/sec
Distance = Rate * Time
D=127.6(12)=1531.2 feet