1.The first three terms in an arithmetic sequence are 3.1, 2.7, and 2.3. Find the fourth term.

2.The first term of an arithmetic sequence is 6, and the common difference is 1.9. Find the 158^thterm.

3.The first term and the sixth term of an arithmetic sequence are 8 and 6, respectively. Find the common difference.

4.The 32^ndterm of an arithmetic sequence is 17.8, the common difference is -1.0. Find the 14^thterm.

5.The first term of an arithmetic sequence is 5, the common difference is 0.8. Find the sum of the first 250 terms.

6.Suppose one year is divided into 12 months of equal length (not so in real life, but close enough). Convert the following time in months to time in years. Round answer to two digits after the decimal point.

6 months.

18 months

30 months

51 months

7.Suppose an account pays 11% simple annual interest, and $6,232 is deposited into the account. If the interest is paid monthly and no money is withdrawn from the account since the initial deposit, find the balance in the account after 6 years. Round answer to two digits after the decimal point.

8.Suppose an account pays 11% simple annual interest, and $6,374 is deposited into the account. If the interest is paid monthly and no money is withdrawn from the account since the initial deposit, find the balance in the account after 16 months. Round answer to two digits after the decimal point.