Kiersten runs a website that people learn to programme. every month, kiersten receives a subscription fee of a 10 from each of the subscribers to her website. last month, the website had 100 subscribers. this month, 30 new members joined the website, and 10 members cancelled their subscription. how much money will kiersten’s online business earn this month?

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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