Let x be a constant. The 5th term of an arithmetic sequence is a = 4x – 3. The 9th term of the sequence is a, = 12x + 9 Find the first term of the sequence. Write your answer in simplest form.

Me its important ! marge runs an ice cream parlor. her speciality is triple chocolate sundaes.she can prepare 1 sundae every 2 minutes, and she earns $1.20 for each sundae she makes . if she just makes sundaes for a single shift of at most 4 hours and at least 2 hours , which function relates her earnings to the number of minutes she works?