Write an explicit formula for each recursive formula a(n)=a(n-1) 3.4;a(1)=7.3
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we are given
You can buy a 6 hour phone card for $5
so, total hours = 6 hours
now, we can change it into min
6 hours = 6*60 min
Let's assume
x is the number of actual minutes talked,
y is the called number of minutes left on the card
and we are given
each minute you talk actually costs you 1.5 minutes of time
so, we get equation as
Graph:
