Anyone knows about limitation and continuity?

If you just plug x=1 in the expression, you can see that, as x approaches 1, the whole expression approaches the following quantity:

Now, how can we find the value of y? We need some additional request. For example, if we knew that this limit had to equal 3, then we would have written

and solved for y. But without something like this, we can only compute the limit and get rid of x, but y stays.

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