Which relation shown as ordered pairs is a function? O {(1, 4); (2, 4); (1, 16); (4, 25)}
O {(4. 14); (7.25); (3, 32); (4, 23)}
O {(2, 3); (2, 5); (2, 6); (2, 7)}
O {(3, 3); (4,3): (5,3): (6,3)}

step-by-step explanation:

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles