First figure out how much it costs to rent seven movies a month. f(7)=2(7) + 12–> 14 + 12–> $26 Now we need to find the difference between 26 and 10. 26 - 10= 16. So Casey needs $16 more to rent 7 movies a month
After 4 years, the account gains $325.8, so 4 years
No. of people don't like to be teacher
= 100% - 75% = 25%
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So, 15 number of students doesn't like to be teacher