It is 5280
All of them except for 98.57 which has four significant figures
Three significant figures. A significant figure is any non-zero digit or any embedded or trailing zero. Leading zeros are not significant.
There are 5280 feet in one mile
1 mile = 5280 ft. So set up a proportion and you will get: 1 mile/5280 ft = x miles/ 16300 ft. Divide 16300 by 5280 and you should get approx. 0.309 miles (to the correct number of significant digits).
There are 5280 feet in one mile. Therefore, 5280 feet is equal to 5280/5280 = 1 mile.
5280
All of them except for 98.57 which has four significant figures
2200
Three of them which are 528
Three significant figures. A significant figure is any non-zero digit or any embedded or trailing zero. Leading zeros are not significant.
Three. The last zero is just a placeholder.
Four
There are 5280 feet in one mile
There are exactly 5280 feet in each mile. In 82,341 feet therefore are 82,341/5280 = 15.595 miles, to the justified number of significant digits.
1 mile = 5280 ft. So set up a proportion and you will get: 1 mile/5280 ft = x miles/ 16300 ft. Divide 16300 by 5280 and you should get approx. 0.309 miles (to the correct number of significant digits).
There are 5280 feet in one mile. Therefore, 900 feet is equal to 900/5280 = 0.17045 recurring (that is, 0.170454545..) miles.
There are 5280 feet per mile and 3600 seconds per hour. 24(5280/3600) = 35 feet per second, to the justified number of significant digits.